21172020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352867}}^1$

素因数の和:352879

約数の個数: 24

約数和(自身を含む): 59281824

約数和(自身を除く): 38109804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352867, 705734, 1058601, 1411468, 1764335, 2117202, 3528670, 4234404, 5293005, 7057340, 10586010, 21172020]

約数ペア:

[(1, 21172020), (2, 10586010), (3, 7057340), (4, 5293005), (5, 4234404), (6, 3528670), (10, 2117202), (12, 1764335), (15, 1411468), (20, 1058601), (30, 705734), (60, 352867)]