# This b-file was computed by Antti Karttunen, 2021-12-05 # in GP/PARI CALCULATOR Version 2.9.4 (released) amd64 running linux (x86-64/GMP-6.1.2 kernel) 64-bit version, compiled: Dec 19 2017, gcc version 7.3.0 (Ubuntu 7.3.0-1ubuntu1), threading engine: pthread # with the following program: # # A006530(n) = if(1==n, n, my(f=factor(n)); f[#f~, 1]); # memoA349789 = Map(); # A349789(n) = if(1==n,1,my(v); if(mapisdefined(memoA349789,n,&v), v, v = -sumdiv(n,d,if(d