21030345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66763}}^1$

素因数の和:66781

約数の個数: 24

約数和(自身を含む): 41660736

約数和(自身を除く): 20630391

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66763, 200289, 333815, 467341, 600867, 1001445, 1402023, 2336705, 3004335, 4206069, 7010115, 21030345]

約数ペア:

[(1, 21030345), (3, 7010115), (5, 4206069), (7, 3004335), (9, 2336705), (15, 1402023), (21, 1001445), (35, 600867), (45, 467341), (63, 333815), (105, 200289), (315, 66763)]