21040992

素因数分解:

$2^5\times 3^3\times 7^3\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 51535008

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 71, 72, 84, 96, 98, 108, 112, 126, 142, 144, 147, 168, 189, 196, 213, 216, 224, 252, 284, 288, 294, 336, 343, 378, 392, 426, 432, 441, 497, 504, 568, 588, 639, 672, 686, 756, 784, 852, 864, 882, 994, 1008, 1029, 1136, 1176, 1278, 1323, 1372, 1491, 1512, 1568, 1704, 1764, 1917, 1988, 2016, 2058, 2272, 2352, 2556, 2646, 2744, 2982, 3024, 3087, 3408, 3479, 3528, 3834, 3976, 4116, 4473, 4704, 5112, 5292, 5488, 5964, 6048, 6174, 6816, 6958, 7056, 7668, 7952, 8232, 8946, 9261, 10224, 10437, 10584, 10976, 11928, 12348, 13419, 13916, 14112, 15336, 15904, 16464, 17892, 18522, 20448, 20874, 21168, 23856, 24353, 24696, 26838, 27832, 30672, 31311, 32928, 35784, 37044, 41748, 42336, 47712, 48706, 49392, 53676, 55664, 61344, 62622, 71568, 73059, 74088, 83496, 93933, 97412, 98784, 107352, 111328, 125244, 143136, 146118, 148176, 166992, 187866, 194824, 214704, 219177, 250488, 292236, 296352, 333984, 375732, 389648, 429408, 438354, 500976, 584472, 657531, 751464, 779296, 876708, 1001952, 1168944, 1315062, 1502928, 1753416, 2337888, 2630124, 3005856, 3506832, 5260248, 7013664, 10520496, 21040992]

約数ペア:

[(1, 21040992), (2, 10520496), (3, 7013664), (4, 5260248), (6, 3506832), (7, 3005856), (8, 2630124), (9, 2337888), (12, 1753416), (14, 1502928), (16, 1315062), (18, 1168944), (21, 1001952), (24, 876708), (27, 779296), (28, 751464), (32, 657531), (36, 584472), (42, 500976), (48, 438354), (49, 429408), (54, 389648), (56, 375732), (63, 333984), (71, 296352), (72, 292236), (84, 250488), (96, 219177), (98, 214704), (108, 194824), (112, 187866), (126, 166992), (142, 148176), (144, 146118), (147, 143136), (168, 125244), (189, 111328), (196, 107352), (213, 98784), (216, 97412), (224, 93933), (252, 83496), (284, 74088), (288, 73059), (294, 71568), (336, 62622), (343, 61344), (378, 55664), (392, 53676), (426, 49392), (432, 48706), (441, 47712), (497, 42336), (504, 41748), (568, 37044), (588, 35784), (639, 32928), (672, 31311), (686, 30672), (756, 27832), (784, 26838), (852, 24696), (864, 24353), (882, 23856), (994, 21168), (1008, 20874), (1029, 20448), (1136, 18522), (1176, 17892), (1278, 16464), (1323, 15904), (1372, 15336), (1491, 14112), (1512, 13916), (1568, 13419), (1704, 12348), (1764, 11928), (1917, 10976), (1988, 10584), (2016, 10437), (2058, 10224), (2272, 9261), (2352, 8946), (2556, 8232), (2646, 7952), (2744, 7668), (2982, 7056), (3024, 6958), (3087, 6816), (3408, 6174), (3479, 6048), (3528, 5964), (3834, 5488), (3976, 5292), (4116, 5112), (4473, 4704)]