7640157

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21401}}^1$

素因数の和:21428

約数の個数: 16

約数和(自身を含む): 12327552

約数和(自身を除く): 4687395

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 21401, 64203, 149807, 363817, 449421, 1091451, 2546719, 7640157]

約数ペア:

[(1, 7640157), (3, 2546719), (7, 1091451), (17, 449421), (21, 363817), (51, 149807), (119, 64203), (357, 21401)]