20980458

素因数分解:

$2^1\times 3^4\times {\mathrm{129509}}^1$

素因数の和:129523

約数の個数: 20

約数和(自身を含む): 47012130

約数和(自身を除く): 26031672

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 129509, 259018, 388527, 777054, 1165581, 2331162, 3496743, 6993486, 10490229, 20980458]

約数ペア:

[(1, 20980458), (2, 10490229), (3, 6993486), (6, 3496743), (9, 2331162), (18, 1165581), (27, 777054), (54, 388527), (81, 259018), (162, 129509)]