20105855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52223}}^1$

素因数の和:52246

約数の個数: 16

約数和(自身を含む): 30081024

約数和(自身を除く): 9975169

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 52223, 261115, 365561, 574453, 1827805, 2872265, 4021171, 20105855]

約数ペア:

[(1, 20105855), (5, 4021171), (7, 2872265), (11, 1827805), (35, 574453), (55, 365561), (77, 261115), (385, 52223)]