21011606

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 21566314

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 43, 77, 86, 133, 154, 167, 209, 266, 301, 334, 418, 473, 602, 817, 946, 1169, 1463, 1634, 1837, 2338, 2926, 3173, 3311, 3674, 5719, 6346, 6622, 7181, 8987, 11438, 12859, 14362, 17974, 22211, 25718, 34903, 44422, 50267, 62909, 69806, 78991, 100534, 125818, 136439, 157982, 244321, 272878, 488642, 552937, 955073, 1105874, 1500829, 1910146, 3001658, 10505803, 21011606]

約数ペア:

[(1, 21011606), (2, 10505803), (7, 3001658), (11, 1910146), (14, 1500829), (19, 1105874), (22, 955073), (38, 552937), (43, 488642), (77, 272878), (86, 244321), (133, 157982), (154, 136439), (167, 125818), (209, 100534), (266, 78991), (301, 69806), (334, 62909), (418, 50267), (473, 44422), (602, 34903), (817, 25718), (946, 22211), (1169, 17974), (1463, 14362), (1634, 12859), (1837, 11438), (2338, 8987), (2926, 7181), (3173, 6622), (3311, 6346), (3674, 5719)]