20518838

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{1913}}^1$

素因数の和:2119

約数の個数: 16

約数和(自身を含む): 31971456

約数和(自身を除く): 11452618

約数列:

[1, 2, 31, 62, 173, 346, 1913, 3826, 5363, 10726, 59303, 118606, 330949, 661898, 10259419, 20518838]

約数ペア:

[(1, 20518838), (2, 10259419), (31, 661898), (62, 330949), (173, 118606), (346, 59303), (1913, 10726), (3826, 5363)]