21252014780

素因数分解:

$2^2\times 5^1\times {\mathrm{1062600739}}^1$

素因数の和:1062600748

約数の個数: 12

約数和(自身を含む): 44629231080

約数和(自身を除く): 23377216300

約数列:

[1, 2, 4, 5, 10, 20, 1062600739, 2125201478, 4250402956, 5313003695, 10626007390, 21252014780]

約数ペア:

[(1, 21252014780), (2, 10626007390), (4, 5313003695), (5, 4250402956), (10, 2125201478), (20, 1062600739)]