7900809

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{757}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 12443328

約数和(自身を除く): 4542519

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 757, 1491, 2271, 3479, 5299, 10437, 15897, 37093, 53747, 111279, 161241, 376229, 1128687, 2633603, 7900809]

約数ペア:

[(1, 7900809), (3, 2633603), (7, 1128687), (21, 376229), (49, 161241), (71, 111279), (147, 53747), (213, 37093), (497, 15897), (757, 10437), (1491, 5299), (2271, 3479)]