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A076887 Sum of divisors of palindromic numbers. 1

%I

%S 1,3,4,7,6,12,8,15,13,12,36,48,84,72,144,96,180,156,102,152,133,132,

%T 192,152,192,260,182,192,306,378,456,450,399,728,396,558,576,518,408,

%U 314,360,494,400,354,532,374,384,528,714,936,810,768,1064,684,930,960

%N Sum of divisors of palindromic numbers.

%H Harvey P. Dale, <a href="/A076887/b076887.txt">Table of n, a(n) for n = 1..1000</a>

%e a(11)=36 because 36 is the sum of divisors of 11th palindromic number (i.e. 22).

%t DivisorSigma[1,#]&/@Select[Range[500],PalindromeQ] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Mar 06 2018 *)

%K base,nonn

%O 1,2

%A _Shyam Sunder Gupta_, Nov 25 2002

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Last modified November 20 02:34 EST 2019. Contains 329323 sequences. (Running on oeis4.)