180820321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{9721}}^1$

素因数の和:9840

約数の個数: 16

約数和(自身を含む): 209995200

約数和(自身を除く): 29174879

約数列:

[1, 11, 19, 89, 209, 979, 1691, 9721, 18601, 106931, 184699, 865169, 2031689, 9516859, 16438211, 180820321]

約数ペア:

[(1, 180820321), (11, 16438211), (19, 9516859), (89, 2031689), (209, 865169), (979, 184699), (1691, 106931), (9721, 18601)]