20403780817

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{1327}}^1\times {\mathrm{129209}}^1$

素因数の和:130560

約数の個数: 16

約数和(自身を含む): 24709086720

約数和(自身を除く): 4305305903

約数列:

[1, 7, 17, 119, 1327, 9289, 22559, 129209, 157913, 904463, 2196553, 15375871, 171460343, 1200222401, 2914825831, 20403780817]

約数ペア:

[(1, 20403780817), (7, 2914825831), (17, 1200222401), (119, 171460343), (1327, 15375871), (9289, 2196553), (22559, 904463), (129209, 157913)]