21804075

素因数分解:

$3^2\times 5^2\times {\mathrm{96907}}^1$

素因数の和:96923

約数の個数: 18

約数和(自身を含む): 39053924

約数和(自身を除く): 17249849

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 96907, 290721, 484535, 872163, 1453605, 2422675, 4360815, 7268025, 21804075]

約数ペア:

[(1, 21804075), (3, 7268025), (5, 4360815), (9, 2422675), (15, 1453605), (25, 872163), (45, 484535), (75, 290721), (225, 96907)]