20999709

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{45751}}^1$

素因数の和:45777

約数の個数: 16

約数和(自身を含む): 32941440

約数和(自身を除く): 11941731

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 45751, 137253, 411759, 777767, 1235277, 2333301, 6999903, 20999709]

約数ペア:

[(1, 20999709), (3, 6999903), (9, 2333301), (17, 1235277), (27, 777767), (51, 411759), (153, 137253), (459, 45751)]