OFFSET
1,2
LINKS
Indranil Ghosh, Table of n, a(n) for n = 1..50000
Pe, J. The Picture-Perfect Numbers
EXAMPLE
The divisors of 10 are 1,2,5,10, which reversed are 1,2,5,1, summing to 9. Therefore a(10) = 9.
MAPLE
read("transforms") ;
A069192 := proc(n)
add(digrev(d), d=numtheory[divisors](n)) ;
end proc: # R. J. Mathar, Sep 09 2015
MATHEMATICA
f[n_] := FromDigits[Reverse[IntegerDigits[n]]]; g[n_] := Apply[Plus, Map[f, Divisors[n]]]; Table[g[i], {i, 1, 40}]
PROG
(Python)
def A069192(n):
....s=0
....for i in range(1, n+1):
........if n%i==0: s+=int(str(i)[::-1])
....return s # Indranil Ghosh, Feb 10 2017
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Joseph L. Pe, Apr 19 2002
EXTENSIONS
Added more terms, corrected offset. - N. J. A. Sloane, May 19 2013
STATUS
approved