71719571

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21661}}^1$

素因数の和:21722

約数の個数: 16

約数和(自身を含む): 91500288

約数和(自身を除く): 19780717

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 21661, 151627, 238271, 931423, 1667897, 6519961, 10245653, 71719571]

約数ペア:

[(1, 71719571), (7, 10245653), (11, 6519961), (43, 1667897), (77, 931423), (301, 238271), (473, 151627), (3311, 21661)]