21228040

素因数分解:

$2^3\times 5^1\times {\mathrm{530701}}^1$

素因数の和:530712

約数の個数: 16

約数和(自身を含む): 47763180

約数和(自身を除く): 26535140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 530701, 1061402, 2122804, 2653505, 4245608, 5307010, 10614020, 21228040]

約数ペア:

[(1, 21228040), (2, 10614020), (4, 5307010), (5, 4245608), (8, 2653505), (10, 2122804), (20, 1061402), (40, 530701)]