18419814

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^2$

素因数の和:186

約数の個数: 72

約数和(自身を含む): 47857680

約数和(自身を除く): 29437866

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 71, 87, 126, 142, 174, 203, 213, 261, 406, 426, 497, 522, 609, 639, 994, 1218, 1278, 1491, 1827, 2059, 2982, 3654, 4118, 4473, 5041, 6177, 8946, 10082, 12354, 14413, 15123, 18531, 28826, 30246, 35287, 37062, 43239, 45369, 70574, 86478, 90738, 105861, 129717, 146189, 211722, 259434, 292378, 317583, 438567, 635166, 877134, 1023323, 1315701, 2046646, 2631402, 3069969, 6139938, 9209907, 18419814]

約数ペア:

[(1, 18419814), (2, 9209907), (3, 6139938), (6, 3069969), (7, 2631402), (9, 2046646), (14, 1315701), (18, 1023323), (21, 877134), (29, 635166), (42, 438567), (58, 317583), (63, 292378), (71, 259434), (87, 211722), (126, 146189), (142, 129717), (174, 105861), (203, 90738), (213, 86478), (261, 70574), (406, 45369), (426, 43239), (497, 37062), (522, 35287), (609, 30246), (639, 28826), (994, 18531), (1218, 15123), (1278, 14413), (1491, 12354), (1827, 10082), (2059, 8946), (2982, 6177), (3654, 5041), (4118, 4473)]