208738863

素因数分解:

$3^4\times {\mathrm{457}}^1\times {\mathrm{5639}}^1$

素因数の和:6108

約数の個数: 20

約数和(自身を含む): 312557520

約数和(自身を除く): 103818657

約数列:

[1, 3, 9, 27, 81, 457, 1371, 4113, 5639, 12339, 16917, 37017, 50751, 152253, 456759, 2577023, 7731069, 23193207, 69579621, 208738863]

約数ペア:

[(1, 208738863), (3, 69579621), (9, 23193207), (27, 7731069), (81, 2577023), (457, 456759), (1371, 152253), (4113, 50751), (5639, 37017), (12339, 16917)]