21147264

素因数分解:

$2^7\times 3^3\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 64872000

約数和(自身を除く): 43724736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 32, 36, 48, 54, 58, 64, 72, 87, 96, 108, 116, 128, 144, 174, 192, 211, 216, 232, 261, 288, 348, 384, 422, 432, 464, 522, 576, 633, 696, 783, 844, 864, 928, 1044, 1152, 1266, 1392, 1566, 1688, 1728, 1856, 1899, 2088, 2532, 2784, 3132, 3376, 3456, 3712, 3798, 4176, 5064, 5568, 5697, 6119, 6264, 6752, 7596, 8352, 10128, 11136, 11394, 12238, 12528, 13504, 15192, 16704, 18357, 20256, 22788, 24476, 25056, 27008, 30384, 33408, 36714, 40512, 45576, 48952, 50112, 55071, 60768, 73428, 81024, 91152, 97904, 100224, 110142, 121536, 146856, 165213, 182304, 195808, 220284, 243072, 293712, 330426, 364608, 391616, 440568, 587424, 660852, 729216, 783232, 881136, 1174848, 1321704, 1762272, 2349696, 2643408, 3524544, 5286816, 7049088, 10573632, 21147264]

約数ペア:

[(1, 21147264), (2, 10573632), (3, 7049088), (4, 5286816), (6, 3524544), (8, 2643408), (9, 2349696), (12, 1762272), (16, 1321704), (18, 1174848), (24, 881136), (27, 783232), (29, 729216), (32, 660852), (36, 587424), (48, 440568), (54, 391616), (58, 364608), (64, 330426), (72, 293712), (87, 243072), (96, 220284), (108, 195808), (116, 182304), (128, 165213), (144, 146856), (174, 121536), (192, 110142), (211, 100224), (216, 97904), (232, 91152), (261, 81024), (288, 73428), (348, 60768), (384, 55071), (422, 50112), (432, 48952), (464, 45576), (522, 40512), (576, 36714), (633, 33408), (696, 30384), (783, 27008), (844, 25056), (864, 24476), (928, 22788), (1044, 20256), (1152, 18357), (1266, 16704), (1392, 15192), (1566, 13504), (1688, 12528), (1728, 12238), (1856, 11394), (1899, 11136), (2088, 10128), (2532, 8352), (2784, 7596), (3132, 6752), (3376, 6264), (3456, 6119), (3712, 5697), (3798, 5568), (4176, 5064)]