2172915

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 3809520

約数和(自身を除く): 1636605

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 443, 545, 981, 1329, 1635, 2215, 3987, 4905, 6645, 19935, 48287, 144861, 241435, 434583, 724305, 2172915]

約数ペア:

[(1, 2172915), (3, 724305), (5, 434583), (9, 241435), (15, 144861), (45, 48287), (109, 19935), (327, 6645), (443, 4905), (545, 3987), (981, 2215), (1329, 1635)]