18474846

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 41912640

約数和(自身を除く): 23437794

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 53, 78, 82, 106, 109, 123, 159, 218, 246, 318, 327, 533, 654, 689, 1066, 1378, 1417, 1599, 2067, 2173, 2834, 3198, 4134, 4251, 4346, 4469, 5777, 6519, 8502, 8938, 11554, 13038, 13407, 17331, 26814, 28249, 34662, 56498, 58097, 75101, 84747, 116194, 150202, 169494, 174291, 225303, 236857, 348582, 450606, 473714, 710571, 1421142, 3079141, 6158282, 9237423, 18474846]

約数ペア:

[(1, 18474846), (2, 9237423), (3, 6158282), (6, 3079141), (13, 1421142), (26, 710571), (39, 473714), (41, 450606), (53, 348582), (78, 236857), (82, 225303), (106, 174291), (109, 169494), (123, 150202), (159, 116194), (218, 84747), (246, 75101), (318, 58097), (327, 56498), (533, 34662), (654, 28249), (689, 26814), (1066, 17331), (1378, 13407), (1417, 13038), (1599, 11554), (2067, 8938), (2173, 8502), (2834, 6519), (3198, 5777), (4134, 4469), (4251, 4346)]