21253760

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3019}}^1$

素因数の和:3049

約数の個数: 64

約数和(自身を含む): 55447200

約数和(自身を除く): 34193440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3019, 3520, 6038, 7040, 12076, 15095, 24152, 30190, 33209, 48304, 60380, 66418, 96608, 120760, 132836, 166045, 193216, 241520, 265672, 332090, 386432, 483040, 531344, 664180, 966080, 1062688, 1328360, 1932160, 2125376, 2656720, 4250752, 5313440, 10626880, 21253760]

約数ペア:

[(1, 21253760), (2, 10626880), (4, 5313440), (5, 4250752), (8, 2656720), (10, 2125376), (11, 1932160), (16, 1328360), (20, 1062688), (22, 966080), (32, 664180), (40, 531344), (44, 483040), (55, 386432), (64, 332090), (80, 265672), (88, 241520), (110, 193216), (128, 166045), (160, 132836), (176, 120760), (220, 96608), (320, 66418), (352, 60380), (440, 48304), (640, 33209), (704, 30190), (880, 24152), (1408, 15095), (1760, 12076), (3019, 7040), (3520, 6038)]