18073072

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:401

約数の個数: 40

約数和(自身を含む): 36309680

約数和(自身を除く): 18236608

約数列:

[1, 2, 4, 8, 16, 43, 86, 109, 172, 218, 241, 344, 436, 482, 688, 872, 964, 1744, 1928, 3856, 4687, 9374, 10363, 18748, 20726, 26269, 37496, 41452, 52538, 74992, 82904, 105076, 165808, 210152, 420304, 1129567, 2259134, 4518268, 9036536, 18073072]

約数ペア:

[(1, 18073072), (2, 9036536), (4, 4518268), (8, 2259134), (16, 1129567), (43, 420304), (86, 210152), (109, 165808), (172, 105076), (218, 82904), (241, 74992), (344, 52538), (436, 41452), (482, 37496), (688, 26269), (872, 20726), (964, 18748), (1744, 10363), (1928, 9374), (3856, 4687)]