16107721

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 20228616

約数和(自身を除く): 4120895

約数列:

[1, 7, 17, 49, 61, 119, 317, 427, 833, 1037, 2219, 2989, 5389, 7259, 15533, 19337, 37723, 50813, 135359, 264061, 328729, 947513, 2301103, 16107721]

約数ペア:

[(1, 16107721), (7, 2301103), (17, 947513), (49, 328729), (61, 264061), (119, 135359), (317, 50813), (427, 37723), (833, 19337), (1037, 15533), (2219, 7259), (2989, 5389)]