18720417

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{593}}^1\times {\mathrm{619}}^1$

素因数の和:1232

約数の個数: 16

約数和(自身を含む): 26516160

約数和(自身を除く): 7795743

約数列:

[1, 3, 17, 51, 593, 619, 1779, 1857, 10081, 10523, 30243, 31569, 367067, 1101201, 6240139, 18720417]

約数ペア:

[(1, 18720417), (3, 6240139), (17, 1101201), (51, 367067), (593, 31569), (619, 30243), (1779, 10523), (1857, 10081)]