19391391

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{15727}}^1$

素因数の和:15870

約数の個数: 12

約数和(自身を含む): 28216032

約数和(自身を除く): 8824641

約数列:

[1, 3, 9, 137, 411, 1233, 15727, 47181, 141543, 2154599, 6463797, 19391391]

約数ペア:

[(1, 19391391), (3, 6463797), (9, 2154599), (137, 141543), (411, 47181), (1233, 15727)]