20837355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18041}}^1$

素因数の和:18067

約数の個数: 32

約数和(自身を含む): 41568768

約数和(自身を除く): 20731413

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18041, 54123, 90205, 126287, 198451, 270615, 378861, 595353, 631435, 992255, 1389157, 1894305, 2976765, 4167471, 6945785, 20837355]

約数ペア:

[(1, 20837355), (3, 6945785), (5, 4167471), (7, 2976765), (11, 1894305), (15, 1389157), (21, 992255), (33, 631435), (35, 595353), (55, 378861), (77, 270615), (105, 198451), (165, 126287), (231, 90205), (385, 54123), (1155, 18041)]