21006913872

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{1559}}^1$

素因数の和:1938

約数の個数: 240

約数和(自身を含む): 67082670720

約数和(自身を除く): 46075756848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 34, 42, 48, 49, 51, 56, 68, 84, 98, 102, 112, 119, 136, 147, 168, 196, 204, 238, 272, 294, 336, 337, 357, 392, 408, 476, 588, 674, 714, 784, 816, 833, 952, 1011, 1176, 1348, 1428, 1559, 1666, 1904, 2022, 2352, 2359, 2499, 2696, 2856, 3118, 3332, 4044, 4677, 4718, 4998, 5392, 5712, 5729, 6236, 6664, 7077, 8088, 9354, 9436, 9996, 10913, 11458, 12472, 13328, 14154, 16176, 16513, 17187, 18708, 18872, 19992, 21826, 22916, 24944, 26503, 28308, 32739, 33026, 34374, 37416, 37744, 39984, 40103, 43652, 45832, 49539, 53006, 56616, 65478, 66052, 68748, 74832, 76391, 79509, 80206, 87304, 91664, 99078, 106012, 113232, 120309, 130956, 132104, 137496, 152782, 159018, 160412, 174608, 185521, 198156, 212024, 229173, 240618, 261912, 264208, 274992, 280721, 305564, 318036, 320824, 371042, 396312, 424048, 458346, 481236, 523824, 525383, 556563, 561442, 611128, 636072, 641648, 742084, 792624, 842163, 916692, 962472, 1050766, 1113126, 1122884, 1222256, 1272144, 1298647, 1484168, 1576149, 1684326, 1833384, 1924944, 2101532, 2226252, 2245768, 2597294, 2968336, 3152298, 3368652, 3666768, 3677681, 3895941, 4203064, 4452504, 4491536, 5194588, 6304596, 6737304, 7355362, 7791882, 8406128, 8905008, 8931511, 10389176, 11033043, 12609192, 13474608, 14710724, 15583764, 17863022, 20778352, 22066086, 25218384, 25743767, 26794533, 29421448, 31167528, 35726044, 44132172, 51487534, 53589066, 58842896, 62335056, 62520577, 71452088, 77231301, 88264344, 102975068, 107178132, 125041154, 142904176, 154462602, 176528688, 187561731, 205950136, 214356264, 250082308, 308925204, 375123462, 411900272, 428712528, 437644039, 500164616, 617850408, 750246924, 875288078, 1000329232, 1235700816, 1312932117, 1500493848, 1750576156, 2625864234, 3000987696, 3501152312, 5251728468, 7002304624, 10503456936, 21006913872]

約数ペア:

[(1, 21006913872), (2, 10503456936), (3, 7002304624), (4, 5251728468), (6, 3501152312), (7, 3000987696), (8, 2625864234), (12, 1750576156), (14, 1500493848), (16, 1312932117), (17, 1235700816), (21, 1000329232), (24, 875288078), (28, 750246924), (34, 617850408), (42, 500164616), (48, 437644039), (49, 428712528), (51, 411900272), (56, 375123462), (68, 308925204), (84, 250082308), (98, 214356264), (102, 205950136), (112, 187561731), (119, 176528688), (136, 154462602), (147, 142904176), (168, 125041154), (196, 107178132), (204, 102975068), (238, 88264344), (272, 77231301), (294, 71452088), (336, 62520577), (337, 62335056), (357, 58842896), (392, 53589066), (408, 51487534), (476, 44132172), (588, 35726044), (674, 31167528), (714, 29421448), (784, 26794533), (816, 25743767), (833, 25218384), (952, 22066086), (1011, 20778352), (1176, 17863022), (1348, 15583764), (1428, 14710724), (1559, 13474608), (1666, 12609192), (1904, 11033043), (2022, 10389176), (2352, 8931511), (2359, 8905008), (2499, 8406128), (2696, 7791882), (2856, 7355362), (3118, 6737304), (3332, 6304596), (4044, 5194588), (4677, 4491536), (4718, 4452504), (4998, 4203064), (5392, 3895941), (5712, 3677681), (5729, 3666768), (6236, 3368652), (6664, 3152298), (7077, 2968336), (8088, 2597294), (9354, 2245768), (9436, 2226252), (9996, 2101532), (10913, 1924944), (11458, 1833384), (12472, 1684326), (13328, 1576149), (14154, 1484168), (16176, 1298647), (16513, 1272144), (17187, 1222256), (18708, 1122884), (18872, 1113126), (19992, 1050766), (21826, 962472), (22916, 916692), (24944, 842163), (26503, 792624), (28308, 742084), (32739, 641648), (33026, 636072), (34374, 611128), (37416, 561442), (37744, 556563), (39984, 525383), (40103, 523824), (43652, 481236), (45832, 458346), (49539, 424048), (53006, 396312), (56616, 371042), (65478, 320824), (66052, 318036), (68748, 305564), (74832, 280721), (76391, 274992), (79509, 264208), (80206, 261912), (87304, 240618), (91664, 229173), (99078, 212024), (106012, 198156), (113232, 185521), (120309, 174608), (130956, 160412), (132104, 159018), (137496, 152782)]