20984075

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6311}}^1$

素因数の和:6347

約数の個数: 24

約数和(自身を含む): 31307520

約数和(自身を除く): 10323445

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 6311, 31555, 44177, 119909, 157775, 220885, 599545, 839363, 1104425, 2997725, 4196815, 20984075]

約数ペア:

[(1, 20984075), (5, 4196815), (7, 2997725), (19, 1104425), (25, 839363), (35, 599545), (95, 220885), (133, 157775), (175, 119909), (475, 44177), (665, 31555), (3325, 6311)]