18428689

素因数分解:

${\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:828

約数の個数: 12

約数和(自身を含む): 19751040

約数和(自身を除く): 1322351

約数列:

[1, 19, 71, 361, 719, 1349, 13661, 25631, 51049, 259559, 969931, 18428689]

約数ペア:

[(1, 18428689), (19, 969931), (71, 259559), (361, 51049), (719, 25631), (1349, 13661)]