20671399

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{757}}^1$

素因数の和:894

約数の個数: 16

約数和(自身を含む): 24450048

約数和(自身を除く): 3778649

約数列:

[1, 7, 47, 83, 329, 581, 757, 3901, 5299, 27307, 35579, 62831, 249053, 439817, 2953057, 20671399]

約数ペア:

[(1, 20671399), (7, 2953057), (47, 439817), (83, 249053), (329, 62831), (581, 35579), (757, 27307), (3901, 5299)]