21777820

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5701}}^1$

素因数の和:5901

約数の個数: 24

約数和(自身を含む): 45980928

約数和(自身を除く): 24203108

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5701, 11402, 22804, 28505, 57010, 114020, 1088891, 2177782, 4355564, 5444455, 10888910, 21777820]

約数ペア:

[(1, 21777820), (2, 10888910), (4, 5444455), (5, 4355564), (10, 2177782), (20, 1088891), (191, 114020), (382, 57010), (764, 28505), (955, 22804), (1910, 11402), (3820, 5701)]