66778621

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1327}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 84779520

約数和(自身を除く): 18000899

約数列:

[1, 7, 13, 49, 79, 91, 553, 637, 1027, 1327, 3871, 7189, 9289, 17251, 50323, 65023, 104833, 120757, 733831, 845299, 1362829, 5136817, 9539803, 66778621]

約数ペア:

[(1, 66778621), (7, 9539803), (13, 5136817), (49, 1362829), (79, 845299), (91, 733831), (553, 120757), (637, 104833), (1027, 65023), (1327, 50323), (3871, 17251), (7189, 9289)]