21186368

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^2\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 84

約数和(自身を含む): 51096672

約数和(自身を除く): 29910304

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 131, 133, 152, 224, 262, 266, 304, 361, 448, 524, 532, 608, 722, 917, 1048, 1064, 1216, 1444, 1834, 2096, 2128, 2489, 2527, 2888, 3668, 4192, 4256, 4978, 5054, 5776, 7336, 8384, 8512, 9956, 10108, 11552, 14672, 17423, 19912, 20216, 23104, 29344, 34846, 39824, 40432, 47291, 58688, 69692, 79648, 80864, 94582, 139384, 159296, 161728, 189164, 278768, 331037, 378328, 557536, 662074, 756656, 1115072, 1324148, 1513312, 2648296, 3026624, 5296592, 10593184, 21186368]

約数ペア:

[(1, 21186368), (2, 10593184), (4, 5296592), (7, 3026624), (8, 2648296), (14, 1513312), (16, 1324148), (19, 1115072), (28, 756656), (32, 662074), (38, 557536), (56, 378328), (64, 331037), (76, 278768), (112, 189164), (131, 161728), (133, 159296), (152, 139384), (224, 94582), (262, 80864), (266, 79648), (304, 69692), (361, 58688), (448, 47291), (524, 40432), (532, 39824), (608, 34846), (722, 29344), (917, 23104), (1048, 20216), (1064, 19912), (1216, 17423), (1444, 14672), (1834, 11552), (2096, 10108), (2128, 9956), (2489, 8512), (2527, 8384), (2888, 7336), (3668, 5776), (4192, 5054), (4256, 4978)]