20774805

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1039}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 35143680

約数和(自身を除く): 14368875

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 1039, 1333, 3117, 3999, 5195, 6665, 15585, 19995, 32209, 44677, 96627, 134031, 161045, 223385, 483135, 670155, 1384987, 4154961, 6924935, 20774805]

約数ペア:

[(1, 20774805), (3, 6924935), (5, 4154961), (15, 1384987), (31, 670155), (43, 483135), (93, 223385), (129, 161045), (155, 134031), (215, 96627), (465, 44677), (645, 32209), (1039, 19995), (1333, 15585), (3117, 6665), (3999, 5195)]