247501521

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{539219}}^1$

素因数の和:539245

約数の個数: 16

約数和(自身を含む): 388238400

約数和(自身を除く): 140736879

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 539219, 1617657, 4852971, 9166723, 14558913, 27500169, 82500507, 247501521]

約数ペア:

[(1, 247501521), (3, 82500507), (9, 27500169), (17, 14558913), (27, 9166723), (51, 4852971), (153, 1617657), (459, 539219)]