138889809

素因数分解:

$3^8\times {\mathrm{21169}}^1$

素因数の和:21193

約数の個数: 18

約数和(自身を含む): 208333970

約数和(自身を除く): 69444161

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 6561, 21169, 63507, 190521, 571563, 1714689, 5144067, 15432201, 46296603, 138889809]

約数ペア:

[(1, 138889809), (3, 46296603), (9, 15432201), (27, 5144067), (81, 1714689), (243, 571563), (729, 190521), (2187, 63507), (6561, 21169)]