156720339

素因数分解:

$3^4\times {\mathrm{773}}^1\times {\mathrm{2503}}^1$

素因数の和:3288

約数の個数: 20

約数和(自身を含む): 234509616

約数和(自身を除く): 77789277

約数列:

[1, 3, 9, 27, 81, 773, 2319, 2503, 6957, 7509, 20871, 22527, 62613, 67581, 202743, 1934819, 5804457, 17413371, 52240113, 156720339]

約数ペア:

[(1, 156720339), (3, 52240113), (9, 17413371), (27, 5804457), (81, 1934819), (773, 202743), (2319, 67581), (2503, 62613), (6957, 22527), (7509, 20871)]