21233816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156131}}^1$

素因数の和:156154

約数の個数: 16

約数和(自身を含む): 42155640

約数和(自身を除く): 20921824

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156131, 312262, 624524, 1249048, 2654227, 5308454, 10616908, 21233816]

約数ペア:

[(1, 21233816), (2, 10616908), (4, 5308454), (8, 2654227), (17, 1249048), (34, 624524), (68, 312262), (136, 156131)]