205125543

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{105031}}^1$

素因数の和:105075

約数の個数: 24

約数和(自身を含む): 349546496

約数和(自身を除く): 144420953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 105031, 315093, 735217, 945279, 2205651, 3255961, 6616953, 9767883, 22791727, 29303649, 68375181, 205125543]

約数ペア:

[(1, 205125543), (3, 68375181), (7, 29303649), (9, 22791727), (21, 9767883), (31, 6616953), (63, 3255961), (93, 2205651), (217, 945279), (279, 735217), (651, 315093), (1953, 105031)]