21742105

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56473}}^1$

素因数の和:56496

約数の個数: 16

約数和(自身を含む): 32529024

約数和(自身を除く): 10786919

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 56473, 282365, 395311, 621203, 1976555, 3106015, 4348421, 21742105]

約数ペア:

[(1, 21742105), (5, 4348421), (7, 3106015), (11, 1976555), (35, 621203), (55, 395311), (77, 282365), (385, 56473)]