21172890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{705763}}^1$

素因数の和:705773

約数の個数: 16

約数和(自身を含む): 50815008

約数和(自身を除く): 29642118

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 705763, 1411526, 2117289, 3528815, 4234578, 7057630, 10586445, 21172890]

約数ペア:

[(1, 21172890), (2, 10586445), (3, 7057630), (5, 4234578), (6, 3528815), (10, 2117289), (15, 1411526), (30, 705763)]