3991421

素因数分解:

$7^1\times {\mathrm{73}}^2\times {\mathrm{107}}^1$

素因数の和:260

約数の個数: 12

約数和(自身を含む): 4668192

約数和(自身を除く): 676771

約数列:

[1, 7, 73, 107, 511, 749, 5329, 7811, 37303, 54677, 570203, 3991421]

約数ペア:

[(1, 3991421), (7, 570203), (73, 54677), (107, 37303), (511, 7811), (749, 5329)]