20297711

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{59}}^2$

素因数の和:156

約数の個数: 24

約数和(自身を含む): 25495200

約数和(自身を除く): 5197489

約数列:

[1, 7, 17, 49, 59, 119, 343, 413, 833, 1003, 2891, 3481, 5831, 7021, 20237, 24367, 49147, 59177, 170569, 344029, 414239, 1193983, 2899673, 20297711]

約数ペア:

[(1, 20297711), (7, 2899673), (17, 1193983), (49, 414239), (59, 344029), (119, 170569), (343, 59177), (413, 49147), (833, 24367), (1003, 20237), (2891, 7021), (3481, 5831)]