21882220

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1201}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 46041408

約数和(自身を除く): 24159188

約数列:

[1, 2, 4, 5, 10, 20, 911, 1201, 1822, 2402, 3644, 4555, 4804, 6005, 9110, 12010, 18220, 24020, 1094111, 2188222, 4376444, 5470555, 10941110, 21882220]

約数ペア:

[(1, 21882220), (2, 10941110), (4, 5470555), (5, 4376444), (10, 2188222), (20, 1094111), (911, 24020), (1201, 18220), (1822, 12010), (2402, 9110), (3644, 6005), (4555, 4804)]