2688438879

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{398819}}^1$

素因数の和:398939

約数の個数: 24

約数和(自身を含む): 4479546240

約数和(自身を除く): 1791107361

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 6741, 398819, 1196457, 2791733, 3589371, 8375199, 25125597, 42673633, 128020899, 298715431, 384062697, 896146293, 2688438879]

約数ペア:

[(1, 2688438879), (3, 896146293), (7, 384062697), (9, 298715431), (21, 128020899), (63, 42673633), (107, 25125597), (321, 8375199), (749, 3589371), (963, 2791733), (2247, 1196457), (6741, 398819)]