20451525

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9403}}^1$

素因数の和:9445

約数の個数: 24

約数和(自身を含む): 34982880

約数和(自身を除く): 14531355

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 9403, 28209, 47015, 141045, 235075, 272687, 705225, 818061, 1363435, 4090305, 6817175, 20451525]

約数ペア:

[(1, 20451525), (3, 6817175), (5, 4090305), (15, 1363435), (25, 818061), (29, 705225), (75, 272687), (87, 235075), (145, 141045), (435, 47015), (725, 28209), (2175, 9403)]