18185778

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:184

約数の個数: 96

約数和(自身を含む): 46126080

約数和(自身を除く): 27940302

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 31, 39, 46, 62, 69, 78, 93, 109, 117, 138, 186, 207, 218, 234, 279, 299, 327, 403, 414, 558, 598, 654, 713, 806, 897, 981, 1209, 1417, 1426, 1794, 1962, 2139, 2418, 2507, 2691, 2834, 3379, 3627, 4251, 4278, 5014, 5382, 6417, 6758, 7254, 7521, 8502, 9269, 10137, 12753, 12834, 15042, 18538, 20274, 22563, 25506, 27807, 30411, 32591, 43927, 45126, 55614, 60822, 65182, 77717, 83421, 87854, 97773, 131781, 155434, 166842, 195546, 233151, 263562, 293319, 395343, 466302, 586638, 699453, 790686, 1010321, 1398906, 2020642, 3030963, 6061926, 9092889, 18185778]

約数ペア:

[(1, 18185778), (2, 9092889), (3, 6061926), (6, 3030963), (9, 2020642), (13, 1398906), (18, 1010321), (23, 790686), (26, 699453), (31, 586638), (39, 466302), (46, 395343), (62, 293319), (69, 263562), (78, 233151), (93, 195546), (109, 166842), (117, 155434), (138, 131781), (186, 97773), (207, 87854), (218, 83421), (234, 77717), (279, 65182), (299, 60822), (327, 55614), (403, 45126), (414, 43927), (558, 32591), (598, 30411), (654, 27807), (713, 25506), (806, 22563), (897, 20274), (981, 18538), (1209, 15042), (1417, 12834), (1426, 12753), (1794, 10137), (1962, 9269), (2139, 8502), (2418, 7521), (2507, 7254), (2691, 6758), (2834, 6417), (3379, 5382), (3627, 5014), (4251, 4278)]