39899867

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2521}}^1$

素因数の和:2571

約数の個数: 24

約数和(自身を含む): 51751440

約数和(自身を除く): 11851573

約数列:

[1, 7, 17, 19, 49, 119, 133, 323, 833, 931, 2261, 2521, 15827, 17647, 42857, 47899, 123529, 299999, 335293, 814283, 2099993, 2347051, 5699981, 39899867]

約数ペア:

[(1, 39899867), (7, 5699981), (17, 2347051), (19, 2099993), (49, 814283), (119, 335293), (133, 299999), (323, 123529), (833, 47899), (931, 42857), (2261, 17647), (2521, 15827)]