20521739161

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{509591}}^1$

素因数の和:510132

約数の個数: 16

約数和(自身を含む): 25634515968

約数和(自身を除く): 5112776807

約数列:

[1, 7, 11, 77, 523, 3661, 5753, 40271, 509591, 3567137, 5605501, 39238507, 266516093, 1865612651, 2931677023, 20521739161]

約数ペア:

[(1, 20521739161), (7, 2931677023), (11, 1865612651), (77, 266516093), (523, 39238507), (3661, 5605501), (5753, 3567137), (40271, 509591)]