# Computed 2017-11-06 in GP/PARI CALCULATOR Version 2.9.2 (released) amd64 running mingw (x86-64/GMP-6.1.2 kernel) 64-bit version, compiled: Mar 22 2017, gcc version 4.9.1 (GCC), threading engine: single # with the following PARI-program: # # A293897(n) = sumdiv(n,d,(d