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Search: id:A033858
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| A033858 |
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Numbers n such that j(n)+ud(n)=d(n), where j(n) = A033831, ud(n) = number of unitary divisors of n (A034444), d(n) = number of divisors of n (A000005). |
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| 1, 2, 4, 8, 9, 12, 20, 24, 25, 27, 40, 49, 54, 88, 104, 120, 121, 125, 135, 136
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