20875179

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{2221}}^1$

素因数の和:2478

約数の個数: 16

約数和(自身を含む): 30112544

約数和(自身を除く): 9237365

約数列:

[1, 3, 13, 39, 241, 723, 2221, 3133, 6663, 9399, 28873, 86619, 535261, 1605783, 6958393, 20875179]

約数ペア:

[(1, 20875179), (3, 6958393), (13, 1605783), (39, 535261), (241, 86619), (723, 28873), (2221, 9399), (3133, 6663)]