20555975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4397}}^1$

素因数の和:4435

約数の個数: 24

約数和(自身を含む): 29449008

約数和(自身を除く): 8893033

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4397, 4675, 21985, 48367, 74749, 109925, 241835, 373745, 822239, 1209175, 1868725, 4111195, 20555975]

約数ペア:

[(1, 20555975), (5, 4111195), (11, 1868725), (17, 1209175), (25, 822239), (55, 373745), (85, 241835), (187, 109925), (275, 74749), (425, 48367), (935, 21985), (4397, 4675)]