20918941

素因数分解:

${\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:300

約数の個数: 16

約数和(自身を含む): 22296384

約数和(自身を除く): 1377443

約数列:

[1, 43, 53, 67, 137, 2279, 2881, 3551, 5891, 7261, 9179, 152693, 312223, 394697, 486487, 20918941]

約数ペア:

[(1, 20918941), (43, 486487), (53, 394697), (67, 312223), (137, 152693), (2279, 9179), (2881, 7261), (3551, 5891)]