128538009

素因数分解:

$3^6\times {\mathrm{176321}}^1$

素因数の和:176339

約数の個数: 14

約数和(自身を含む): 192719946

約数和(自身を除く): 64181937

約数列:

[1, 3, 9, 27, 81, 243, 729, 176321, 528963, 1586889, 4760667, 14282001, 42846003, 128538009]

約数ペア:

[(1, 128538009), (3, 42846003), (9, 14282001), (27, 4760667), (81, 1586889), (243, 528963), (729, 176321)]