71686657

素因数分解:

$7^4\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:510

約数の個数: 20

約数和(自身を含む): 84982340

約数和(自身を除く): 13295683

約数列:

[1, 7, 49, 73, 343, 409, 511, 2401, 2863, 3577, 20041, 25039, 29857, 140287, 175273, 208999, 982009, 1462993, 10240951, 71686657]

約数ペア:

[(1, 71686657), (7, 10240951), (49, 1462993), (73, 982009), (343, 208999), (409, 175273), (511, 140287), (2401, 29857), (2863, 25039), (3577, 20041)]