2886556

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{1999}}^1$

素因数の和:2041

約数の個数: 18

約数和(自身を含む): 5334000

約数和(自身を除く): 2447444

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 1999, 3998, 7996, 37981, 75962, 151924, 721639, 1443278, 2886556]

約数ペア:

[(1, 2886556), (2, 1443278), (4, 721639), (19, 151924), (38, 75962), (76, 37981), (361, 7996), (722, 3998), (1444, 1999)]