205470009

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{63241}}^1$

素因数の和:63285

約数の個数: 18

約数和(自身を含む): 313237626

約数和(自身を除く): 107767617

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 63241, 189723, 569169, 1201579, 3604737, 10814211, 22830001, 68490003, 205470009]

約数ペア:

[(1, 205470009), (3, 68490003), (9, 22830001), (19, 10814211), (57, 3604737), (171, 1201579), (361, 569169), (1083, 189723), (3249, 63241)]