12738891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5437}}^1$

素因数の和:5522

約数の個数: 16

約数和(自身を含む): 18793728

約数和(自身を除く): 6054837

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 5437, 16311, 59807, 179421, 386027, 1158081, 4246297, 12738891]

約数ペア:

[(1, 12738891), (3, 4246297), (11, 1158081), (33, 386027), (71, 179421), (213, 59807), (781, 16311), (2343, 5437)]