9901870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90017}}^1$

素因数の和:90035

約数の個数: 16

約数和(自身を含む): 19443888

約数和(自身を除く): 9542018

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 90017, 180034, 450085, 900170, 990187, 1980374, 4950935, 9901870]

約数ペア:

[(1, 9901870), (2, 4950935), (5, 1980374), (10, 990187), (11, 900170), (22, 450085), (55, 180034), (110, 90017)]