21425152

素因数分解:

$2^{10}\times 7^3\times {\mathrm{61}}^1$

素因数の和:102

約数の個数: 88

約数和(自身を含む): 50765600

約数和(自身を除く): 29340448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 64, 98, 112, 122, 128, 196, 224, 244, 256, 343, 392, 427, 448, 488, 512, 686, 784, 854, 896, 976, 1024, 1372, 1568, 1708, 1792, 1952, 2744, 2989, 3136, 3416, 3584, 3904, 5488, 5978, 6272, 6832, 7168, 7808, 10976, 11956, 12544, 13664, 15616, 20923, 21952, 23912, 25088, 27328, 31232, 41846, 43904, 47824, 50176, 54656, 62464, 83692, 87808, 95648, 109312, 167384, 175616, 191296, 218624, 334768, 351232, 382592, 437248, 669536, 765184, 1339072, 1530368, 2678144, 3060736, 5356288, 10712576, 21425152]

約数ペア:

[(1, 21425152), (2, 10712576), (4, 5356288), (7, 3060736), (8, 2678144), (14, 1530368), (16, 1339072), (28, 765184), (32, 669536), (49, 437248), (56, 382592), (61, 351232), (64, 334768), (98, 218624), (112, 191296), (122, 175616), (128, 167384), (196, 109312), (224, 95648), (244, 87808), (256, 83692), (343, 62464), (392, 54656), (427, 50176), (448, 47824), (488, 43904), (512, 41846), (686, 31232), (784, 27328), (854, 25088), (896, 23912), (976, 21952), (1024, 20923), (1372, 15616), (1568, 13664), (1708, 12544), (1792, 11956), (1952, 10976), (2744, 7808), (2989, 7168), (3136, 6832), (3416, 6272), (3584, 5978), (3904, 5488)]