21813800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3761}}^1$

素因数の和:3806

約数の個数: 48

約数和(自身を含む): 52479900

約数和(自身を除く): 30666100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3761, 5800, 7522, 15044, 18805, 30088, 37610, 75220, 94025, 109069, 150440, 188050, 218138, 376100, 436276, 545345, 752200, 872552, 1090690, 2181380, 2726725, 4362760, 5453450, 10906900, 21813800]

約数ペア:

[(1, 21813800), (2, 10906900), (4, 5453450), (5, 4362760), (8, 2726725), (10, 2181380), (20, 1090690), (25, 872552), (29, 752200), (40, 545345), (50, 436276), (58, 376100), (100, 218138), (116, 188050), (145, 150440), (200, 109069), (232, 94025), (290, 75220), (580, 37610), (725, 30088), (1160, 18805), (1450, 15044), (2900, 7522), (3761, 5800)]