21577980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{359633}}^1$

素因数の和:359645

約数の個数: 24

約数和(自身を含む): 60418512

約数和(自身を除く): 38840532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 359633, 719266, 1078899, 1438532, 1798165, 2157798, 3596330, 4315596, 5394495, 7192660, 10788990, 21577980]

約数ペア:

[(1, 21577980), (2, 10788990), (3, 7192660), (4, 5394495), (5, 4315596), (6, 3596330), (10, 2157798), (12, 1798165), (15, 1438532), (20, 1078899), (30, 719266), (60, 359633)]