381997

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{41}}^1$

素因数の和:81

約数の個数: 16

約数和(自身を含む): 491904

約数和(自身を除く): 109907

約数列:

[1, 7, 11, 41, 77, 121, 287, 451, 847, 1331, 3157, 4961, 9317, 34727, 54571, 381997]

約数ペア:

[(1, 381997), (7, 54571), (11, 34727), (41, 9317), (77, 4961), (121, 3157), (287, 1331), (451, 847)]