205121385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{651179}}^1$

素因数の和:651197

約数の個数: 24

約数和(自身を含む): 406336320

約数和(自身を除く): 201214935

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 651179, 1953537, 3255895, 4558253, 5860611, 9767685, 13674759, 22791265, 29303055, 41024277, 68373795, 205121385]

約数ペア:

[(1, 205121385), (3, 68373795), (5, 41024277), (7, 29303055), (9, 22791265), (15, 13674759), (21, 9767685), (35, 5860611), (45, 4558253), (63, 3255895), (105, 1953537), (315, 651179)]