21036288

素因数分解:

$2^8\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:89

約数の個数: 216

約数和(自身を含む): 71768928

約数和(自身を除く): 50732640

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 43, 48, 49, 52, 56, 64, 78, 84, 86, 91, 96, 98, 104, 112, 128, 129, 147, 156, 168, 172, 182, 192, 196, 208, 224, 256, 258, 273, 294, 301, 312, 336, 344, 364, 384, 392, 416, 448, 516, 546, 559, 588, 602, 624, 637, 672, 688, 728, 768, 784, 832, 896, 903, 1032, 1092, 1118, 1176, 1204, 1248, 1274, 1344, 1376, 1456, 1568, 1664, 1677, 1792, 1806, 1911, 2064, 2107, 2184, 2236, 2352, 2408, 2496, 2548, 2688, 2752, 2912, 3136, 3328, 3354, 3612, 3822, 3913, 4128, 4214, 4368, 4472, 4704, 4816, 4992, 5096, 5376, 5504, 5824, 6272, 6321, 6708, 7224, 7644, 7826, 8256, 8428, 8736, 8944, 9408, 9632, 9984, 10192, 11008, 11648, 11739, 12544, 12642, 13416, 14448, 15288, 15652, 16512, 16856, 17472, 17888, 18816, 19264, 20384, 23296, 23478, 25284, 26832, 27391, 28896, 30576, 31304, 33024, 33712, 34944, 35776, 37632, 38528, 40768, 46956, 50568, 53664, 54782, 57792, 61152, 62608, 67424, 69888, 71552, 77056, 81536, 82173, 93912, 101136, 107328, 109564, 115584, 122304, 125216, 134848, 143104, 163072, 164346, 187824, 202272, 214656, 219128, 231168, 244608, 250432, 269696, 328692, 375648, 404544, 429312, 438256, 489216, 500864, 539392, 657384, 751296, 809088, 876512, 1001728, 1314768, 1502592, 1618176, 1753024, 2629536, 3005184, 3506048, 5259072, 7012096, 10518144, 21036288]

約数ペア:

[(1, 21036288), (2, 10518144), (3, 7012096), (4, 5259072), (6, 3506048), (7, 3005184), (8, 2629536), (12, 1753024), (13, 1618176), (14, 1502592), (16, 1314768), (21, 1001728), (24, 876512), (26, 809088), (28, 751296), (32, 657384), (39, 539392), (42, 500864), (43, 489216), (48, 438256), (49, 429312), (52, 404544), (56, 375648), (64, 328692), (78, 269696), (84, 250432), (86, 244608), (91, 231168), (96, 219128), (98, 214656), (104, 202272), (112, 187824), (128, 164346), (129, 163072), (147, 143104), (156, 134848), (168, 125216), (172, 122304), (182, 115584), (192, 109564), (196, 107328), (208, 101136), (224, 93912), (256, 82173), (258, 81536), (273, 77056), (294, 71552), (301, 69888), (312, 67424), (336, 62608), (344, 61152), (364, 57792), (384, 54782), (392, 53664), (416, 50568), (448, 46956), (516, 40768), (546, 38528), (559, 37632), (588, 35776), (602, 34944), (624, 33712), (637, 33024), (672, 31304), (688, 30576), (728, 28896), (768, 27391), (784, 26832), (832, 25284), (896, 23478), (903, 23296), (1032, 20384), (1092, 19264), (1118, 18816), (1176, 17888), (1204, 17472), (1248, 16856), (1274, 16512), (1344, 15652), (1376, 15288), (1456, 14448), (1568, 13416), (1664, 12642), (1677, 12544), (1792, 11739), (1806, 11648), (1911, 11008), (2064, 10192), (2107, 9984), (2184, 9632), (2236, 9408), (2352, 8944), (2408, 8736), (2496, 8428), (2548, 8256), (2688, 7826), (2752, 7644), (2912, 7224), (3136, 6708), (3328, 6321), (3354, 6272), (3612, 5824), (3822, 5504), (3913, 5376), (4128, 5096), (4214, 4992), (4368, 4816), (4472, 4704)]