21075495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11807}}^1$

素因数の和:11839

約数の個数: 32

約数和(自身を含む): 40808448

約数和(自身を除く): 19732953

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 11807, 35421, 59035, 82649, 177105, 200719, 247947, 413245, 602157, 1003595, 1239735, 1405033, 3010785, 4215099, 7025165, 21075495]

約数ペア:

[(1, 21075495), (3, 7025165), (5, 4215099), (7, 3010785), (15, 1405033), (17, 1239735), (21, 1003595), (35, 602157), (51, 413245), (85, 247947), (105, 200719), (119, 177105), (255, 82649), (357, 59035), (595, 35421), (1785, 11807)]