289221569

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{10559}}^1$

素因数の和:10629

約数の個数: 24

約数和(自身を含む): 370782720

約数和(自身を除く): 81561151

約数列:

[1, 7, 13, 43, 49, 91, 301, 559, 637, 2107, 3913, 10559, 27391, 73913, 137267, 454037, 517391, 960869, 3178259, 5902481, 6726083, 22247813, 41317367, 289221569]

約数ペア:

[(1, 289221569), (7, 41317367), (13, 22247813), (43, 6726083), (49, 5902481), (91, 3178259), (301, 960869), (559, 517391), (637, 454037), (2107, 137267), (3913, 73913), (10559, 27391)]