20210481

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{677}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 30461184

約数和(自身を除く): 10250703

約数列:

[1, 3, 9, 31, 93, 107, 279, 321, 677, 963, 2031, 3317, 6093, 9951, 20987, 29853, 62961, 72439, 188883, 217317, 651951, 2245609, 6736827, 20210481]

約数ペア:

[(1, 20210481), (3, 6736827), (9, 2245609), (31, 651951), (93, 217317), (107, 188883), (279, 72439), (321, 62961), (677, 29853), (963, 20987), (2031, 9951), (3317, 6093)]