393542961

素因数分解:

$3^1\times 7^2\times {\mathrm{617}}^1\times {\mathrm{4339}}^1$

素因数の和:4973

約数の個数: 24

約数和(自身を含む): 611523360

約数和(自身を除く): 217980399

約数列:

[1, 3, 7, 21, 49, 147, 617, 1851, 4319, 4339, 12957, 13017, 30233, 30373, 90699, 91119, 212611, 637833, 2677163, 8031489, 18740141, 56220423, 131180987, 393542961]

約数ペア:

[(1, 393542961), (3, 131180987), (7, 56220423), (21, 18740141), (49, 8031489), (147, 2677163), (617, 637833), (1851, 212611), (4319, 91119), (4339, 90699), (12957, 30373), (13017, 30233)]