20984816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69029}}^1$

素因数の和:69056

約数の個数: 20

約数和(自身を含む): 42798600

約数和(自身を除く): 21813784

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69029, 138058, 276116, 552232, 1104464, 1311551, 2623102, 5246204, 10492408, 20984816]

約数ペア:

[(1, 20984816), (2, 10492408), (4, 5246204), (8, 2623102), (16, 1311551), (19, 1104464), (38, 552232), (76, 276116), (152, 138058), (304, 69029)]