19712710

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{10891}}^1$

素因数の和:11079

約数の個数: 16

約数和(自身を含む): 35682192

約数和(自身を除く): 15969482

約数列:

[1, 2, 5, 10, 181, 362, 905, 1810, 10891, 21782, 54455, 108910, 1971271, 3942542, 9856355, 19712710]

約数ペア:

[(1, 19712710), (2, 9856355), (5, 3942542), (10, 1971271), (181, 108910), (362, 54455), (905, 21782), (1810, 10891)]