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Search: id:A137486
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| A137486 |
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Numbers with 23 divisors. |
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+0
6
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| 4194304, 31381059609, 2384185791015625, 3909821048582988049, 81402749386839761113321, 3211838877954855105157369, 1174562876521148458974062689, 13569980418174090907801371961
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Maple implementation: see A030513.
22nd powers of primes. The n-th number with p divisors is equal to the n-th prime raised to power p-1, where p is prime. - Omar E. Pol (info(AT)polprimos.com), May 06 2008
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FORMULA
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A000005(a(n))=23.
a(n)=A000040(n)^(23-1)=A000040(n)^(22). - Omar E. Pol (info(AT)polprimos.com), May 06 2008
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CROSSREFS
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Cf. A030513-A030516, A030626, A030627, A030634-A030638, A005179, A003680, A096932, A061286, A061283.
Cf. A000040.
Sequence in context: A016907 A017708 A010810 this_sequence A016967 A017039 A017123
Adjacent sequences: A137483 A137484 A137485 this_sequence A137487 A137488 A137489
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KEYWORD
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nonn
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AUTHOR
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R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 22 2008
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