21165312

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 66977792

約数和(自身を除く): 45812480

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 64, 84, 93, 96, 112, 124, 127, 128, 168, 186, 192, 217, 224, 248, 254, 256, 336, 372, 381, 384, 434, 448, 496, 508, 651, 672, 744, 762, 768, 868, 889, 896, 992, 1016, 1302, 1344, 1488, 1524, 1736, 1778, 1792, 1984, 2032, 2604, 2667, 2688, 2976, 3048, 3472, 3556, 3937, 3968, 4064, 5208, 5334, 5376, 5952, 6096, 6944, 7112, 7874, 7936, 8128, 10416, 10668, 11811, 11904, 12192, 13888, 14224, 15748, 16256, 20832, 21336, 23622, 23808, 24384, 27559, 27776, 28448, 31496, 32512, 41664, 42672, 47244, 48768, 55118, 55552, 56896, 62992, 82677, 83328, 85344, 94488, 97536, 110236, 113792, 125984, 165354, 166656, 170688, 188976, 220472, 227584, 251968, 330708, 341376, 377952, 440944, 503936, 661416, 682752, 755904, 881888, 1007872, 1322832, 1511808, 1763776, 2645664, 3023616, 3527552, 5291328, 7055104, 10582656, 21165312]

約数ペア:

[(1, 21165312), (2, 10582656), (3, 7055104), (4, 5291328), (6, 3527552), (7, 3023616), (8, 2645664), (12, 1763776), (14, 1511808), (16, 1322832), (21, 1007872), (24, 881888), (28, 755904), (31, 682752), (32, 661416), (42, 503936), (48, 440944), (56, 377952), (62, 341376), (64, 330708), (84, 251968), (93, 227584), (96, 220472), (112, 188976), (124, 170688), (127, 166656), (128, 165354), (168, 125984), (186, 113792), (192, 110236), (217, 97536), (224, 94488), (248, 85344), (254, 83328), (256, 82677), (336, 62992), (372, 56896), (381, 55552), (384, 55118), (434, 48768), (448, 47244), (496, 42672), (508, 41664), (651, 32512), (672, 31496), (744, 28448), (762, 27776), (768, 27559), (868, 24384), (889, 23808), (896, 23622), (992, 21336), (1016, 20832), (1302, 16256), (1344, 15748), (1488, 14224), (1524, 13888), (1736, 12192), (1778, 11904), (1792, 11811), (1984, 10668), (2032, 10416), (2604, 8128), (2667, 7936), (2688, 7874), (2976, 7112), (3048, 6944), (3472, 6096), (3556, 5952), (3937, 5376), (3968, 5334), (4064, 5208)]