20518085

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{12473}}^1$

素因数の和:12532

約数の個数: 16

約数和(自身を含む): 28740096

約数和(自身を除く): 8222011

約数列:

[1, 5, 7, 35, 47, 235, 329, 1645, 12473, 62365, 87311, 436555, 586231, 2931155, 4103617, 20518085]

約数ペア:

[(1, 20518085), (5, 4103617), (7, 2931155), (35, 586231), (47, 436555), (235, 87311), (329, 62365), (1645, 12473)]