18162221

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{523}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 23416512

約数和(自身を除く): 5254291

約数列:

[1, 7, 11, 41, 77, 121, 287, 451, 523, 847, 3157, 3661, 4961, 5753, 21443, 34727, 40271, 63283, 150101, 235873, 442981, 1651111, 2594603, 18162221]

約数ペア:

[(1, 18162221), (7, 2594603), (11, 1651111), (41, 442981), (77, 235873), (121, 150101), (287, 63283), (451, 40271), (523, 34727), (847, 21443), (3157, 5753), (3661, 4961)]