20178488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2143}}^1$

素因数の和:2267

約数の個数: 32

約数和(自身を含む): 41679360

約数和(自身を除く): 21500872

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 107, 214, 428, 856, 1177, 2143, 2354, 4286, 4708, 8572, 9416, 17144, 23573, 47146, 94292, 188584, 229301, 458602, 917204, 1834408, 2522311, 5044622, 10089244, 20178488]

約数ペア:

[(1, 20178488), (2, 10089244), (4, 5044622), (8, 2522311), (11, 1834408), (22, 917204), (44, 458602), (88, 229301), (107, 188584), (214, 94292), (428, 47146), (856, 23573), (1177, 17144), (2143, 9416), (2354, 8572), (4286, 4708)]