21186240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{761}}^1$

素因数の和:810

約数の個数: 112

約数和(自身を含む): 69677280

約数和(自身を除く): 48491040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 145, 160, 174, 192, 232, 240, 290, 320, 348, 435, 464, 480, 580, 696, 761, 870, 928, 960, 1160, 1392, 1522, 1740, 1856, 2283, 2320, 2784, 3044, 3480, 3805, 4566, 4640, 5568, 6088, 6960, 7610, 9132, 9280, 11415, 12176, 13920, 15220, 18264, 22069, 22830, 24352, 27840, 30440, 36528, 44138, 45660, 48704, 60880, 66207, 73056, 88276, 91320, 110345, 121760, 132414, 146112, 176552, 182640, 220690, 243520, 264828, 331035, 353104, 365280, 441380, 529656, 662070, 706208, 730560, 882760, 1059312, 1324140, 1412416, 1765520, 2118624, 2648280, 3531040, 4237248, 5296560, 7062080, 10593120, 21186240]

約数ペア:

[(1, 21186240), (2, 10593120), (3, 7062080), (4, 5296560), (5, 4237248), (6, 3531040), (8, 2648280), (10, 2118624), (12, 1765520), (15, 1412416), (16, 1324140), (20, 1059312), (24, 882760), (29, 730560), (30, 706208), (32, 662070), (40, 529656), (48, 441380), (58, 365280), (60, 353104), (64, 331035), (80, 264828), (87, 243520), (96, 220690), (116, 182640), (120, 176552), (145, 146112), (160, 132414), (174, 121760), (192, 110345), (232, 91320), (240, 88276), (290, 73056), (320, 66207), (348, 60880), (435, 48704), (464, 45660), (480, 44138), (580, 36528), (696, 30440), (761, 27840), (870, 24352), (928, 22830), (960, 22069), (1160, 18264), (1392, 15220), (1522, 13920), (1740, 12176), (1856, 11415), (2283, 9280), (2320, 9132), (2784, 7610), (3044, 6960), (3480, 6088), (3805, 5568), (4566, 4640)]