20881610

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{122833}}^1$

素因数の和:122857

約数の個数: 16

約数和(自身を含む): 39798216

約数和(自身を除く): 18916606

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 122833, 245666, 614165, 1228330, 2088161, 4176322, 10440805, 20881610]

約数ペア:

[(1, 20881610), (2, 10440805), (5, 4176322), (10, 2088161), (17, 1228330), (34, 614165), (85, 245666), (170, 122833)]