21990660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{366511}}^1$

素因数の和:366523

約数の個数: 24

約数和(自身を含む): 61574016

約数和(自身を除く): 39583356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 366511, 733022, 1099533, 1466044, 1832555, 2199066, 3665110, 4398132, 5497665, 7330220, 10995330, 21990660]

約数ペア:

[(1, 21990660), (2, 10995330), (3, 7330220), (4, 5497665), (5, 4398132), (6, 3665110), (10, 2199066), (12, 1832555), (15, 1466044), (20, 1099533), (30, 733022), (60, 366511)]