19980367

素因数分解:

${\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{2707}}^1$

素因数の和:2790

約数の個数: 12

約数和(自身を含む): 22330168

約数和(自身を除く): 2349801

約数列:

[1, 11, 61, 121, 671, 2707, 7381, 29777, 165127, 327547, 1816397, 19980367]

約数ペア:

[(1, 19980367), (11, 1816397), (61, 327547), (121, 165127), (671, 29777), (2707, 7381)]