12987075

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4027}}^1$

素因数の和:4083

約数の個数: 24

約数和(自身を含む): 21976768

約数和(自身を除く): 8989693

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 4027, 12081, 20135, 60405, 100675, 173161, 302025, 519483, 865805, 2597415, 4329025, 12987075]

約数ペア:

[(1, 12987075), (3, 4329025), (5, 2597415), (15, 865805), (25, 519483), (43, 302025), (75, 173161), (129, 100675), (215, 60405), (645, 20135), (1075, 12081), (3225, 4027)]