81752881

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{311}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 101402496

約数和(自身を除く): 19649615

約数列:

[1, 7, 17, 47, 119, 311, 329, 799, 2177, 2209, 5287, 5593, 14617, 15463, 37009, 37553, 102319, 248489, 262871, 686999, 1739423, 4808993, 11678983, 81752881]

約数ペア:

[(1, 81752881), (7, 11678983), (17, 4808993), (47, 1739423), (119, 686999), (311, 262871), (329, 248489), (799, 102319), (2177, 37553), (2209, 37009), (5287, 15463), (5593, 14617)]