21050552020

素因数分解:

$2^2\times 5^1\times {\mathrm{1052527601}}^1$

素因数の和:1052527610

約数の個数: 12

約数和(自身を含む): 44206159284

約数和(自身を除く): 23155607264

約数列:

[1, 2, 4, 5, 10, 20, 1052527601, 2105055202, 4210110404, 5262638005, 10525276010, 21050552020]

約数ペア:

[(1, 21050552020), (2, 10525276010), (4, 5262638005), (5, 4210110404), (10, 2105055202), (20, 1052527601)]