211995217

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{227707}}^1$

素因数の和:227740

約数の個数: 12

約数和(自身を含む): 259587120

約数和(自身を除く): 47591903

約数列:

[1, 7, 19, 49, 133, 931, 227707, 1593949, 4326433, 11157643, 30285031, 211995217]

約数ペア:

[(1, 211995217), (7, 30285031), (19, 11157643), (49, 4326433), (133, 1593949), (931, 227707)]