18090729

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9437}}^1$

素因数の和:9517

約数の個数: 16

約数和(自身を含む): 27181440

約数和(自身を除く): 9090711

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9437, 28311, 84933, 254799, 670027, 2010081, 6030243, 18090729]

約数ペア:

[(1, 18090729), (3, 6030243), (9, 2010081), (27, 670027), (71, 254799), (213, 84933), (639, 28311), (1917, 9437)]