21048615

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66821}}^1$

素因数の和:66839

約数の個数: 24

約数和(自身を含む): 41696928

約数和(自身を除く): 20648313

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66821, 200463, 334105, 467747, 601389, 1002315, 1403241, 2338735, 3006945, 4209723, 7016205, 21048615]

約数ペア:

[(1, 21048615), (3, 7016205), (5, 4209723), (7, 3006945), (9, 2338735), (15, 1403241), (21, 1002315), (35, 601389), (45, 467747), (63, 334105), (105, 200463), (315, 66821)]