217467009

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{83609}}^1$

素因数の和:83649

約数の個数: 18

約数和(自身を含む): 333687510

約数和(自身を除く): 116220501

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 83609, 250827, 752481, 1421353, 4264059, 12792177, 24163001, 72489003, 217467009]

約数ペア:

[(1, 217467009), (3, 72489003), (9, 24163001), (17, 12792177), (51, 4264059), (153, 1421353), (289, 752481), (867, 250827), (2601, 83609)]