21903740

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3499}}^1$

素因数の和:3821

約数の個数: 24

約数和(自身を含む): 46158000

約数和(自身を除く): 24254260

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 3499, 6260, 6998, 13996, 17495, 34990, 69980, 1095187, 2190374, 4380748, 5475935, 10951870, 21903740]

約数ペア:

[(1, 21903740), (2, 10951870), (4, 5475935), (5, 4380748), (10, 2190374), (20, 1095187), (313, 69980), (626, 34990), (1252, 17495), (1565, 13996), (3130, 6998), (3499, 6260)]