20531385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65179}}^1$

素因数の和:65197

約数の個数: 24

約数和(自身を含む): 40672320

約数和(自身を除く): 20140935

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65179, 195537, 325895, 456253, 586611, 977685, 1368759, 2281265, 2933055, 4106277, 6843795, 20531385]

約数ペア:

[(1, 20531385), (3, 6843795), (5, 4106277), (7, 2933055), (9, 2281265), (15, 1368759), (21, 977685), (35, 586611), (45, 456253), (63, 325895), (105, 195537), (315, 65179)]