18406157

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:761

約数の個数: 24

約数和(自身を含む): 23901696

約数和(自身を除く): 5495539

約数列:

[1, 7, 11, 31, 77, 121, 217, 341, 701, 847, 2387, 3751, 4907, 7711, 21731, 26257, 53977, 84821, 152117, 239041, 593747, 1673287, 2629451, 18406157]

約数ペア:

[(1, 18406157), (7, 2629451), (11, 1673287), (31, 593747), (77, 239041), (121, 152117), (217, 84821), (341, 53977), (701, 26257), (847, 21731), (2387, 7711), (3751, 4907)]