21604530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{720151}}^1$

素因数の和:720161

約数の個数: 16

約数和(自身を含む): 51850944

約数和(自身を除く): 30246414

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 720151, 1440302, 2160453, 3600755, 4320906, 7201510, 10802265, 21604530]

約数ペア:

[(1, 21604530), (2, 10802265), (3, 7201510), (5, 4320906), (6, 3600755), (10, 2160453), (15, 1440302), (30, 720151)]