21128796143

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4380841}}^1$

素因数の和:4380914

約数の個数: 16

約数和(自身を含む): 26495332416

約数和(自身を除く): 5366536273

約数列:

[1, 7, 13, 53, 91, 371, 689, 4823, 4380841, 30665887, 56950933, 232184573, 398656531, 1625292011, 3018399449, 21128796143]

約数ペア:

[(1, 21128796143), (7, 3018399449), (13, 1625292011), (53, 398656531), (91, 232184573), (371, 56950933), (689, 30665887), (4823, 4380841)]