20882785

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4931}}^1$

素因数の和:4965

約数の個数: 24

約数和(自身を含む): 31485888

約数和(自身を除く): 10603103

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 4931, 24655, 34517, 54241, 172585, 271205, 379687, 596651, 1898435, 2983255, 4176557, 20882785]

約数ペア:

[(1, 20882785), (5, 4176557), (7, 2983255), (11, 1898435), (35, 596651), (55, 379687), (77, 271205), (121, 172585), (385, 54241), (605, 34517), (847, 24655), (4235, 4931)]