20896512

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:75

約数の個数: 216

約数和(自身を含む): 71817984

約数和(自身を除く): 50921472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 23, 24, 26, 28, 32, 39, 42, 46, 48, 52, 56, 64, 69, 78, 84, 91, 92, 96, 104, 112, 128, 138, 156, 161, 168, 169, 182, 184, 192, 208, 224, 256, 273, 276, 299, 312, 322, 336, 338, 364, 368, 384, 416, 448, 483, 507, 546, 552, 598, 624, 644, 672, 676, 728, 736, 768, 832, 896, 897, 966, 1014, 1092, 1104, 1183, 1196, 1248, 1288, 1344, 1352, 1456, 1472, 1664, 1792, 1794, 1932, 2028, 2093, 2184, 2208, 2366, 2392, 2496, 2576, 2688, 2704, 2912, 2944, 3328, 3549, 3588, 3864, 3887, 4056, 4186, 4368, 4416, 4732, 4784, 4992, 5152, 5376, 5408, 5824, 5888, 6279, 7098, 7176, 7728, 7774, 8112, 8372, 8736, 8832, 9464, 9568, 9984, 10304, 10816, 11648, 11661, 12558, 14196, 14352, 15456, 15548, 16224, 16744, 17472, 17664, 18928, 19136, 20608, 21632, 23296, 23322, 25116, 27209, 28392, 28704, 30912, 31096, 32448, 33488, 34944, 37856, 38272, 41216, 43264, 46644, 50232, 54418, 56784, 57408, 61824, 62192, 64896, 66976, 69888, 75712, 76544, 81627, 93288, 100464, 108836, 113568, 114816, 123648, 124384, 129792, 133952, 151424, 163254, 186576, 200928, 217672, 227136, 229632, 248768, 267904, 302848, 326508, 373152, 401856, 435344, 454272, 497536, 535808, 653016, 746304, 803712, 870688, 908544, 995072, 1306032, 1492608, 1607424, 1741376, 2612064, 2985216, 3482752, 5224128, 6965504, 10448256, 20896512]

約数ペア:

[(1, 20896512), (2, 10448256), (3, 6965504), (4, 5224128), (6, 3482752), (7, 2985216), (8, 2612064), (12, 1741376), (13, 1607424), (14, 1492608), (16, 1306032), (21, 995072), (23, 908544), (24, 870688), (26, 803712), (28, 746304), (32, 653016), (39, 535808), (42, 497536), (46, 454272), (48, 435344), (52, 401856), (56, 373152), (64, 326508), (69, 302848), (78, 267904), (84, 248768), (91, 229632), (92, 227136), (96, 217672), (104, 200928), (112, 186576), (128, 163254), (138, 151424), (156, 133952), (161, 129792), (168, 124384), (169, 123648), (182, 114816), (184, 113568), (192, 108836), (208, 100464), (224, 93288), (256, 81627), (273, 76544), (276, 75712), (299, 69888), (312, 66976), (322, 64896), (336, 62192), (338, 61824), (364, 57408), (368, 56784), (384, 54418), (416, 50232), (448, 46644), (483, 43264), (507, 41216), (546, 38272), (552, 37856), (598, 34944), (624, 33488), (644, 32448), (672, 31096), (676, 30912), (728, 28704), (736, 28392), (768, 27209), (832, 25116), (896, 23322), (897, 23296), (966, 21632), (1014, 20608), (1092, 19136), (1104, 18928), (1183, 17664), (1196, 17472), (1248, 16744), (1288, 16224), (1344, 15548), (1352, 15456), (1456, 14352), (1472, 14196), (1664, 12558), (1792, 11661), (1794, 11648), (1932, 10816), (2028, 10304), (2093, 9984), (2184, 9568), (2208, 9464), (2366, 8832), (2392, 8736), (2496, 8372), (2576, 8112), (2688, 7774), (2704, 7728), (2912, 7176), (2944, 7098), (3328, 6279), (3549, 5888), (3588, 5824), (3864, 5408), (3887, 5376), (4056, 5152), (4186, 4992), (4368, 4784), (4416, 4732)]