18722319

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81049}}^1$

素因数の和:81070

約数の個数: 16

約数和(自身を含む): 31123200

約数和(自身を除く): 12400881

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81049, 243147, 567343, 891539, 1702029, 2674617, 6240773, 18722319]

約数ペア:

[(1, 18722319), (3, 6240773), (7, 2674617), (11, 1702029), (21, 891539), (33, 567343), (77, 243147), (231, 81049)]