204391845

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{648863}}^1$

素因数の和:648881

約数の個数: 24

約数和(自身を含む): 404891136

約数和(自身を除く): 200499291

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 648863, 1946589, 3244315, 4542041, 5839767, 9732945, 13626123, 22710205, 29198835, 40878369, 68130615, 204391845]

約数ペア:

[(1, 204391845), (3, 68130615), (5, 40878369), (7, 29198835), (9, 22710205), (15, 13626123), (21, 9732945), (35, 5839767), (45, 4542041), (63, 3244315), (105, 1946589), (315, 648863)]