15720733

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 20139200

約数和(自身を除く): 4418467

約数列:

[1, 7, 17, 19, 119, 133, 289, 323, 409, 2023, 2261, 2863, 5491, 6953, 7771, 38437, 48671, 54397, 118201, 132107, 827407, 924749, 2245819, 15720733]

約数ペア:

[(1, 15720733), (7, 2245819), (17, 924749), (19, 827407), (119, 132107), (133, 118201), (289, 54397), (323, 48671), (409, 38437), (2023, 7771), (2261, 6953), (2863, 5491)]