20129423909

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1\times {\mathrm{164821}}^1$

素因数の和:165140

約数の個数: 16

約数和(自身を含む): 23417909760

約数和(自身を除く): 3288485851

約数列:

[1, 7, 73, 239, 511, 1673, 17447, 122129, 164821, 1153747, 12031933, 39392219, 84223531, 275745533, 2875631987, 20129423909]

約数ペア:

[(1, 20129423909), (7, 2875631987), (73, 275745533), (239, 84223531), (511, 39392219), (1673, 12031933), (17447, 1153747), (122129, 164821)]