20565209852

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42490103}}^1$

素因数の和:42490129

約数の個数: 18

約数和(自身を含む): 39558286824

約数和(自身を除く): 18993076972

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42490103, 84980206, 169960412, 467391133, 934782266, 1869564532, 5141302463, 10282604926, 20565209852]

約数ペア:

[(1, 20565209852), (2, 10282604926), (4, 5141302463), (11, 1869564532), (22, 934782266), (44, 467391133), (121, 169960412), (242, 84980206), (484, 42490103)]