OFFSET
1,2
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..10000
MATHEMATICA
Table[DivisorSigma[1, Times @@ MapIndexed[Prime[First@ #2]^#1 &, Sort[FactorInteger[n][[All, -1]], Greater]] - Boole[n == 1]], {n, 78}] (* Michael De Vlieger, May 20 2017 *)
PROG
(PARI)
A046523(n) = my(f=vecsort(factor(n)[, 2], , 4), p); prod(i=1, #f, (p=nextprime(p+1))^f[i]) \\ This function from Charles R Greathouse IV, Aug 17 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, May 09 2003
EXTENSIONS
Name clarified by Antti Karttunen, May 19 2017
STATUS
approved