21496856576

素因数分解:

$2^{20}\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 168

約数和(自身を含む): 49324991520

約数和(自身を除く): 27828134944

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 83, 104, 128, 152, 166, 208, 247, 256, 304, 332, 416, 494, 512, 608, 664, 832, 988, 1024, 1079, 1216, 1328, 1577, 1664, 1976, 2048, 2158, 2432, 2656, 3154, 3328, 3952, 4096, 4316, 4864, 5312, 6308, 6656, 7904, 8192, 8632, 9728, 10624, 12616, 13312, 15808, 16384, 17264, 19456, 20501, 21248, 25232, 26624, 31616, 32768, 34528, 38912, 41002, 42496, 50464, 53248, 63232, 65536, 69056, 77824, 82004, 84992, 100928, 106496, 126464, 131072, 138112, 155648, 164008, 169984, 201856, 212992, 252928, 262144, 276224, 311296, 328016, 339968, 403712, 425984, 505856, 524288, 552448, 622592, 656032, 679936, 807424, 851968, 1011712, 1048576, 1104896, 1245184, 1312064, 1359872, 1614848, 1703936, 2023424, 2209792, 2490368, 2624128, 2719744, 3229696, 3407872, 4046848, 4419584, 4980736, 5248256, 5439488, 6459392, 6815744, 8093696, 8839168, 9961472, 10496512, 10878976, 12918784, 13631488, 16187392, 17678336, 19922944, 20993024, 21757952, 25837568, 32374784, 35356672, 41986048, 43515904, 51675136, 64749568, 70713344, 83972096, 87031808, 103350272, 129499136, 141426688, 167944192, 206700544, 258998272, 282853376, 335888384, 413401088, 565706752, 671776768, 826802176, 1131413504, 1343553536, 1653604352, 2687107072, 5374214144, 10748428288, 21496856576]

約数ペア:

[(1, 21496856576), (2, 10748428288), (4, 5374214144), (8, 2687107072), (13, 1653604352), (16, 1343553536), (19, 1131413504), (26, 826802176), (32, 671776768), (38, 565706752), (52, 413401088), (64, 335888384), (76, 282853376), (83, 258998272), (104, 206700544), (128, 167944192), (152, 141426688), (166, 129499136), (208, 103350272), (247, 87031808), (256, 83972096), (304, 70713344), (332, 64749568), (416, 51675136), (494, 43515904), (512, 41986048), (608, 35356672), (664, 32374784), (832, 25837568), (988, 21757952), (1024, 20993024), (1079, 19922944), (1216, 17678336), (1328, 16187392), (1577, 13631488), (1664, 12918784), (1976, 10878976), (2048, 10496512), (2158, 9961472), (2432, 8839168), (2656, 8093696), (3154, 6815744), (3328, 6459392), (3952, 5439488), (4096, 5248256), (4316, 4980736), (4864, 4419584), (5312, 4046848), (6308, 3407872), (6656, 3229696), (7904, 2719744), (8192, 2624128), (8632, 2490368), (9728, 2209792), (10624, 2023424), (12616, 1703936), (13312, 1614848), (15808, 1359872), (16384, 1312064), (17264, 1245184), (19456, 1104896), (20501, 1048576), (21248, 1011712), (25232, 851968), (26624, 807424), (31616, 679936), (32768, 656032), (34528, 622592), (38912, 552448), (41002, 524288), (42496, 505856), (50464, 425984), (53248, 403712), (63232, 339968), (65536, 328016), (69056, 311296), (77824, 276224), (82004, 262144), (84992, 252928), (100928, 212992), (106496, 201856), (126464, 169984), (131072, 164008), (138112, 155648)]