18713919

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{9187}}^1$

素因数の和:9294

約数の個数: 16

約数和(自身を含む): 28813568

約数和(自身を除く): 10099649

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 9187, 27561, 64309, 192927, 891139, 2673417, 6237973, 18713919]

約数ペア:

[(1, 18713919), (3, 6237973), (7, 2673417), (21, 891139), (97, 192927), (291, 64309), (679, 27561), (2037, 9187)]