21228990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{707633}}^1$

素因数の和:707643

約数の個数: 16

約数和(自身を含む): 50949648

約数和(自身を除く): 29720658

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 707633, 1415266, 2122899, 3538165, 4245798, 7076330, 10614495, 21228990]

約数ペア:

[(1, 21228990), (2, 10614495), (3, 7076330), (5, 4245798), (6, 3538165), (10, 2122899), (15, 1415266), (30, 707633)]