18729729

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{29311}}^1$

素因数の和:29388

約数の個数: 12

約数和(自身を含む): 27436032

約数和(自身を除く): 8706303

約数列:

[1, 3, 9, 71, 213, 639, 29311, 87933, 263799, 2081081, 6243243, 18729729]

約数ペア:

[(1, 18729729), (3, 6243243), (9, 2081081), (71, 263799), (213, 87933), (639, 29311)]