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A113061 Sum of cube divisors of n. 0
1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 28, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 28, 1, 9, 1, 1, 1, 1, 1, 1, 1, 73, 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 9, 28, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 9 (list; graph; refs; listen; history; internal format)
OFFSET

0,8

COMMENTS

Multiplicative with a(p^e) = (p^(e+3-r)-1)/(p^3-1) where e== r (mod 3). The Dirichlet generating function is zeta(s)*zeta(3s-3). The sequence is the inverse Mobius transform of n*A010057(n). - R. J. Mathar, Feb 18 2011

CROSSREFS

Cf. A004709, A035316.

Sequence in context: A176522 A010534 A078297 * A176410 A087966 A087968

Adjacent sequences:  A113058 A113059 A113060 * A113062 A113063 A113064

KEYWORD

nonn,mult

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Oct 13 2005

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Last modified February 14 07:16 EST 2012. Contains 205589 sequences.