21458304

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{887}}^1$

素因数の和:917

約数の個数: 128

約数和(自身を含む): 72460800

約数和(自身を除く): 51002496

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 288, 336, 378, 384, 432, 448, 504, 576, 672, 756, 864, 887, 896, 1008, 1152, 1344, 1512, 1728, 1774, 2016, 2661, 2688, 3024, 3456, 3548, 4032, 5322, 6048, 6209, 7096, 7983, 8064, 10644, 12096, 12418, 14192, 15966, 18627, 21288, 23949, 24192, 24836, 28384, 31932, 37254, 42576, 47898, 49672, 55881, 56768, 63864, 74508, 85152, 95796, 99344, 111762, 113536, 127728, 149016, 167643, 170304, 191592, 198688, 223524, 255456, 298032, 335286, 340608, 383184, 397376, 447048, 510912, 596064, 670572, 766368, 794752, 894096, 1021824, 1192128, 1341144, 1532736, 1788192, 2384256, 2682288, 3065472, 3576384, 5364576, 7152768, 10729152, 21458304]

約数ペア:

[(1, 21458304), (2, 10729152), (3, 7152768), (4, 5364576), (6, 3576384), (7, 3065472), (8, 2682288), (9, 2384256), (12, 1788192), (14, 1532736), (16, 1341144), (18, 1192128), (21, 1021824), (24, 894096), (27, 794752), (28, 766368), (32, 670572), (36, 596064), (42, 510912), (48, 447048), (54, 397376), (56, 383184), (63, 340608), (64, 335286), (72, 298032), (84, 255456), (96, 223524), (108, 198688), (112, 191592), (126, 170304), (128, 167643), (144, 149016), (168, 127728), (189, 113536), (192, 111762), (216, 99344), (224, 95796), (252, 85152), (288, 74508), (336, 63864), (378, 56768), (384, 55881), (432, 49672), (448, 47898), (504, 42576), (576, 37254), (672, 31932), (756, 28384), (864, 24836), (887, 24192), (896, 23949), (1008, 21288), (1152, 18627), (1344, 15966), (1512, 14192), (1728, 12418), (1774, 12096), (2016, 10644), (2661, 8064), (2688, 7983), (3024, 7096), (3456, 6209), (3548, 6048), (4032, 5322)]