3991107

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 5685120

約数和(自身を除く): 1694013

約数列:

[1, 3, 17, 51, 139, 417, 563, 1689, 2363, 7089, 9571, 28713, 78257, 234771, 1330369, 3991107]

約数ペア:

[(1, 3991107), (3, 1330369), (17, 234771), (51, 78257), (139, 28713), (417, 9571), (563, 7089), (1689, 2363)]