18986814

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 55486080

約数和(自身を除く): 36499266

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 33, 38, 42, 49, 57, 63, 66, 77, 98, 99, 103, 114, 126, 133, 147, 154, 171, 198, 206, 209, 231, 266, 294, 309, 342, 399, 418, 441, 462, 539, 618, 627, 693, 721, 798, 882, 927, 931, 1078, 1133, 1197, 1254, 1386, 1442, 1463, 1617, 1854, 1862, 1881, 1957, 2163, 2266, 2394, 2793, 2926, 3234, 3399, 3762, 3914, 4326, 4389, 4851, 5047, 5586, 5871, 6489, 6798, 7931, 8379, 8778, 9702, 10094, 10197, 10241, 11742, 12978, 13167, 13699, 15141, 15862, 16758, 17613, 20394, 20482, 21527, 23793, 26334, 27398, 30282, 30723, 35226, 41097, 43054, 45423, 47586, 55517, 61446, 64581, 71379, 82194, 90846, 92169, 95893, 111034, 123291, 129162, 142758, 150689, 166551, 184338, 191786, 193743, 246582, 287679, 301378, 333102, 387486, 452067, 499653, 575358, 863037, 904134, 999306, 1054823, 1356201, 1726074, 2109646, 2712402, 3164469, 6328938, 9493407, 18986814]

約数ペア:

[(1, 18986814), (2, 9493407), (3, 6328938), (6, 3164469), (7, 2712402), (9, 2109646), (11, 1726074), (14, 1356201), (18, 1054823), (19, 999306), (21, 904134), (22, 863037), (33, 575358), (38, 499653), (42, 452067), (49, 387486), (57, 333102), (63, 301378), (66, 287679), (77, 246582), (98, 193743), (99, 191786), (103, 184338), (114, 166551), (126, 150689), (133, 142758), (147, 129162), (154, 123291), (171, 111034), (198, 95893), (206, 92169), (209, 90846), (231, 82194), (266, 71379), (294, 64581), (309, 61446), (342, 55517), (399, 47586), (418, 45423), (441, 43054), (462, 41097), (539, 35226), (618, 30723), (627, 30282), (693, 27398), (721, 26334), (798, 23793), (882, 21527), (927, 20482), (931, 20394), (1078, 17613), (1133, 16758), (1197, 15862), (1254, 15141), (1386, 13699), (1442, 13167), (1463, 12978), (1617, 11742), (1854, 10241), (1862, 10197), (1881, 10094), (1957, 9702), (2163, 8778), (2266, 8379), (2394, 7931), (2793, 6798), (2926, 6489), (3234, 5871), (3399, 5586), (3762, 5047), (3914, 4851), (4326, 4389)]