18745818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 96

約数和(自身を含む): 49190400

約数和(自身を除く): 30444582

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 38, 39, 42, 57, 78, 91, 114, 133, 139, 169, 182, 247, 266, 273, 278, 338, 399, 417, 494, 507, 546, 741, 798, 834, 973, 1014, 1183, 1482, 1729, 1807, 1946, 2366, 2641, 2919, 3211, 3458, 3549, 3614, 5187, 5282, 5421, 5838, 6422, 7098, 7923, 9633, 10374, 10842, 12649, 15846, 18487, 19266, 22477, 23491, 25298, 34333, 36974, 37947, 44954, 46982, 55461, 67431, 68666, 70473, 75894, 102999, 110922, 134862, 140946, 164437, 205998, 240331, 328874, 446329, 480662, 493311, 720993, 892658, 986622, 1338987, 1441986, 2677974, 3124303, 6248606, 9372909, 18745818]

約数ペア:

[(1, 18745818), (2, 9372909), (3, 6248606), (6, 3124303), (7, 2677974), (13, 1441986), (14, 1338987), (19, 986622), (21, 892658), (26, 720993), (38, 493311), (39, 480662), (42, 446329), (57, 328874), (78, 240331), (91, 205998), (114, 164437), (133, 140946), (139, 134862), (169, 110922), (182, 102999), (247, 75894), (266, 70473), (273, 68666), (278, 67431), (338, 55461), (399, 46982), (417, 44954), (494, 37947), (507, 36974), (546, 34333), (741, 25298), (798, 23491), (834, 22477), (973, 19266), (1014, 18487), (1183, 15846), (1482, 12649), (1729, 10842), (1807, 10374), (1946, 9633), (2366, 7923), (2641, 7098), (2919, 6422), (3211, 5838), (3458, 5421), (3549, 5282), (3614, 5187)]