21647808

素因数分解:

$2^6\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1$

素因数の和:104

約数の個数: 252

約数和(自身を含む): 79049880

約数和(自身を除く): 57402072

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 49, 52, 56, 59, 63, 64, 72, 78, 84, 91, 96, 98, 104, 112, 117, 118, 126, 144, 147, 156, 168, 177, 182, 192, 196, 208, 224, 234, 236, 252, 273, 288, 294, 312, 336, 354, 364, 392, 413, 416, 441, 448, 468, 472, 504, 531, 546, 576, 588, 624, 637, 672, 708, 728, 767, 784, 819, 826, 832, 882, 936, 944, 1008, 1062, 1092, 1176, 1239, 1248, 1274, 1344, 1416, 1456, 1534, 1568, 1638, 1652, 1764, 1872, 1888, 1911, 2016, 2124, 2184, 2301, 2352, 2478, 2496, 2548, 2832, 2891, 2912, 3068, 3136, 3276, 3304, 3528, 3717, 3744, 3776, 3822, 4032, 4248, 4368, 4602, 4704, 4956, 5096, 5369, 5664, 5733, 5782, 5824, 6136, 6552, 6608, 6903, 7056, 7434, 7488, 7644, 8496, 8673, 8736, 9204, 9408, 9912, 10192, 10738, 11328, 11466, 11564, 12272, 13104, 13216, 13806, 14112, 14868, 15288, 16107, 16992, 17346, 17472, 18408, 19824, 20384, 21476, 22932, 23128, 24544, 26019, 26208, 26432, 27612, 28224, 29736, 30576, 32214, 33984, 34692, 36816, 37583, 39648, 40768, 42952, 45864, 46256, 48321, 49088, 52038, 52416, 55224, 59472, 61152, 64428, 69384, 73632, 75166, 79296, 85904, 91728, 92512, 96642, 104076, 110448, 112749, 118944, 122304, 128856, 138768, 147264, 150332, 171808, 183456, 185024, 193284, 208152, 220896, 225498, 237888, 257712, 277536, 300664, 338247, 343616, 366912, 386568, 416304, 441792, 450996, 515424, 555072, 601328, 676494, 773136, 832608, 901992, 1030848, 1202656, 1352988, 1546272, 1665216, 1803984, 2405312, 2705976, 3092544, 3607968, 5411952, 7215936, 10823904, 21647808]

約数ペア:

[(1, 21647808), (2, 10823904), (3, 7215936), (4, 5411952), (6, 3607968), (7, 3092544), (8, 2705976), (9, 2405312), (12, 1803984), (13, 1665216), (14, 1546272), (16, 1352988), (18, 1202656), (21, 1030848), (24, 901992), (26, 832608), (28, 773136), (32, 676494), (36, 601328), (39, 555072), (42, 515424), (48, 450996), (49, 441792), (52, 416304), (56, 386568), (59, 366912), (63, 343616), (64, 338247), (72, 300664), (78, 277536), (84, 257712), (91, 237888), (96, 225498), (98, 220896), (104, 208152), (112, 193284), (117, 185024), (118, 183456), (126, 171808), (144, 150332), (147, 147264), (156, 138768), (168, 128856), (177, 122304), (182, 118944), (192, 112749), (196, 110448), (208, 104076), (224, 96642), (234, 92512), (236, 91728), (252, 85904), (273, 79296), (288, 75166), (294, 73632), (312, 69384), (336, 64428), (354, 61152), (364, 59472), (392, 55224), (413, 52416), (416, 52038), (441, 49088), (448, 48321), (468, 46256), (472, 45864), (504, 42952), (531, 40768), (546, 39648), (576, 37583), (588, 36816), (624, 34692), (637, 33984), (672, 32214), (708, 30576), (728, 29736), (767, 28224), (784, 27612), (819, 26432), (826, 26208), (832, 26019), (882, 24544), (936, 23128), (944, 22932), (1008, 21476), (1062, 20384), (1092, 19824), (1176, 18408), (1239, 17472), (1248, 17346), (1274, 16992), (1344, 16107), (1416, 15288), (1456, 14868), (1534, 14112), (1568, 13806), (1638, 13216), (1652, 13104), (1764, 12272), (1872, 11564), (1888, 11466), (1911, 11328), (2016, 10738), (2124, 10192), (2184, 9912), (2301, 9408), (2352, 9204), (2478, 8736), (2496, 8673), (2548, 8496), (2832, 7644), (2891, 7488), (2912, 7434), (3068, 7056), (3136, 6903), (3276, 6608), (3304, 6552), (3528, 6136), (3717, 5824), (3744, 5782), (3776, 5733), (3822, 5664), (4032, 5369), (4248, 5096), (4368, 4956), (4602, 4704)]