25997499

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 43490304

約数和(自身を除く): 17492805

約数列:

[1, 3, 9, 11, 31, 33, 43, 93, 99, 129, 197, 279, 341, 387, 473, 591, 1023, 1333, 1419, 1773, 2167, 3069, 3999, 4257, 6107, 6501, 8471, 11997, 14663, 18321, 19503, 25413, 43989, 54963, 67177, 76239, 93181, 131967, 201531, 262601, 279543, 604593, 787803, 838629, 2363409, 2888611, 8665833, 25997499]

約数ペア:

[(1, 25997499), (3, 8665833), (9, 2888611), (11, 2363409), (31, 838629), (33, 787803), (43, 604593), (93, 279543), (99, 262601), (129, 201531), (197, 131967), (279, 93181), (341, 76239), (387, 67177), (473, 54963), (591, 43989), (1023, 25413), (1333, 19503), (1419, 18321), (1773, 14663), (2167, 11997), (3069, 8471), (3999, 6501), (4257, 6107)]