208707121

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{115117}}^1$

素因数の和:115168

約数の個数: 12

約数和(自身を含む): 249345588

約数和(自身を除く): 40638467

約数列:

[1, 7, 37, 49, 259, 1813, 115117, 805819, 4259329, 5640733, 29815303, 208707121]

約数ペア:

[(1, 208707121), (7, 29815303), (37, 5640733), (49, 4259329), (259, 805819), (1813, 115117)]