21990959908

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{22621}}^1\times {\mathrm{5171}}^1$

素因数の和:27843

約数の個数: 24

約数和(自身を含む): 39312330624

約数和(自身を除く): 17321370716

約数列:

[1, 2, 4, 47, 94, 188, 5171, 10342, 20684, 22621, 45242, 90484, 243037, 486074, 972148, 1063187, 2126374, 4252748, 116973191, 233946382, 467892764, 5497739977, 10995479954, 21990959908]

約数ペア:

[(1, 21990959908), (2, 10995479954), (4, 5497739977), (47, 467892764), (94, 233946382), (188, 116973191), (5171, 4252748), (10342, 2126374), (20684, 1063187), (22621, 972148), (45242, 486074), (90484, 243037)]