20515804561

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{66029}}^1$

素因数の和:66433

約数の個数: 24

約数和(自身を含む): 25337295720

約数和(自身を除く): 4821491159

約数列:

[1, 7, 17, 49, 119, 373, 833, 2611, 6341, 18277, 44387, 66029, 310709, 462203, 1122493, 3235421, 7857451, 24628817, 55002157, 172401719, 418689889, 1206812033, 2930829223, 20515804561]

約数ペア:

[(1, 20515804561), (7, 2930829223), (17, 1206812033), (49, 418689889), (119, 172401719), (373, 55002157), (833, 24628817), (2611, 7857451), (6341, 3235421), (18277, 1122493), (44387, 462203), (66029, 310709)]