31916054

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{1997}}^1$

素因数の和:2191

約数の個数: 16

約数和(自身を含む): 49054896

約数和(自身を除く): 17138842

約数列:

[1, 2, 61, 122, 131, 262, 1997, 3994, 7991, 15982, 121817, 243634, 261607, 523214, 15958027, 31916054]

約数ペア:

[(1, 31916054), (2, 15958027), (61, 523214), (122, 261607), (131, 243634), (262, 121817), (1997, 15982), (3994, 7991)]