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A067342 Sum of decimal digits of sum of divisors of n. 2
1, 3, 4, 7, 6, 3, 8, 6, 4, 9, 3, 10, 5, 6, 6, 4, 9, 12, 2, 6, 5, 9, 6, 6, 4, 6, 4, 11, 3, 9, 5, 9, 12, 9, 12, 10, 11, 6, 11, 9, 6, 15, 8, 12, 15, 9, 12, 7, 12, 12, 9, 17, 9, 3, 9, 3, 8, 9, 6, 15, 8, 15, 5, 10, 12, 9, 14, 9, 15, 9, 9, 15, 11, 6, 7, 5, 15, 15, 8, 15, 4, 9, 12, 8, 9, 6, 3, 9, 9, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..89.

EXAMPLE

n=100, sigma[100]=217, SumDigit[217]=10, a[100]=10.

MATHEMATICA

Array[Total[IntegerDigits[DivisorSigma[1, #]]]&, 90] (* From Harvey P. Dale, Jan 02 2012 *)

CROSSREFS

Sequence in context: A017665 A105852 A190998 * A105827 A023888 A222085

Adjacent sequences:  A067339 A067340 A067341 * A067343 A067344 A067345

KEYWORD

nonn,base

AUTHOR

Labos E (labos(AT)ana.sote.hu), Jan 16 2002

STATUS

approved

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Last modified May 21 11:29 EDT 2013. Contains 225478 sequences.