21238416

素因数分解:

$2^4\times 3^3\times {\mathrm{211}}^1\times {\mathrm{233}}^1$

素因数の和:461

約数の個数: 80

約数和(自身を含む): 61513920

約数和(自身を除く): 40275504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 211, 216, 233, 422, 432, 466, 633, 699, 844, 932, 1266, 1398, 1688, 1864, 1899, 2097, 2532, 2796, 3376, 3728, 3798, 4194, 5064, 5592, 5697, 6291, 7596, 8388, 10128, 11184, 11394, 12582, 15192, 16776, 22788, 25164, 30384, 33552, 45576, 49163, 50328, 91152, 98326, 100656, 147489, 196652, 294978, 393304, 442467, 589956, 786608, 884934, 1179912, 1327401, 1769868, 2359824, 2654802, 3539736, 5309604, 7079472, 10619208, 21238416]

約数ペア:

[(1, 21238416), (2, 10619208), (3, 7079472), (4, 5309604), (6, 3539736), (8, 2654802), (9, 2359824), (12, 1769868), (16, 1327401), (18, 1179912), (24, 884934), (27, 786608), (36, 589956), (48, 442467), (54, 393304), (72, 294978), (108, 196652), (144, 147489), (211, 100656), (216, 98326), (233, 91152), (422, 50328), (432, 49163), (466, 45576), (633, 33552), (699, 30384), (844, 25164), (932, 22788), (1266, 16776), (1398, 15192), (1688, 12582), (1864, 11394), (1899, 11184), (2097, 10128), (2532, 8388), (2796, 7596), (3376, 6291), (3728, 5697), (3798, 5592), (4194, 5064)]