21553444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{489851}}^1$

素因数の和:489866

約数の個数: 12

約数和(自身を含む): 41147568

約数和(自身を除く): 19594124

約数列:

[1, 2, 4, 11, 22, 44, 489851, 979702, 1959404, 5388361, 10776722, 21553444]

約数ペア:

[(1, 21553444), (2, 10776722), (4, 5388361), (11, 1959404), (22, 979702), (44, 489851)]