80642709

素因数分解:

$3^6\times 7^1\times {\mathrm{15803}}^1$

素因数の和:15828

約数の個数: 28

約数和(自身を含む): 138190176

約数和(自身を除く): 57547467

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 15803, 47409, 110621, 142227, 331863, 426681, 995589, 1280043, 2986767, 3840129, 8960301, 11520387, 26880903, 80642709]

約数ペア:

[(1, 80642709), (3, 26880903), (7, 11520387), (9, 8960301), (21, 3840129), (27, 2986767), (63, 1280043), (81, 995589), (189, 426681), (243, 331863), (567, 142227), (729, 110621), (1701, 47409), (5103, 15803)]