18287019

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{39841}}^1$

素因数の和:39867

約数の個数: 16

約数和(自身を含む): 28686240

約数和(自身を除く): 10399221

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 39841, 119523, 358569, 677297, 1075707, 2031891, 6095673, 18287019]

約数ペア:

[(1, 18287019), (3, 6095673), (9, 2031891), (17, 1075707), (27, 677297), (51, 358569), (153, 119523), (459, 39841)]