Search: id:A069915
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%I A069915
%S A069915 1,3,4,3,6,12,8,7,4,18,12,12,14,24,24,11,18,12,20,18,32,36,24,28,6,42,
%T A069915 13,24,30,72,32,31,48,54,48,12,38,60,56,42,42,96,44,36,24,72,48,44,8,
%U A069915 18,72,42,54,39,72,56,80,90,60,72,62,96,32,35,84,144,68,54,96,144,72
%N A069915 Sum of (1+phi)-divisors of n (cf. A061389).
%F A069915 Multiplicative with a(p^e) = 1+Sum_{k=1..e, gcd(k, e)=1} p^k.
%Y A069915 Cf. A061389.
%Y A069915 Sequence in context: A046897 A109506 A000113 this_sequence A033634 A111970 
               A141730
%Y A069915 Adjacent sequences: A069912 A069913 A069914 this_sequence A069916 A069917 
               A069918
%K A069915 mult,nonn
%O A069915 1,2
%A A069915 Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 23 2002

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