20643321

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5701}}^1$

素因数の和:5792

約数の個数: 16

約数和(自身を含む): 29559168

約数和(自身を除く): 8915847

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5701, 17103, 96917, 290751, 404771, 1214313, 6881107, 20643321]

約数ペア:

[(1, 20643321), (3, 6881107), (17, 1214313), (51, 404771), (71, 290751), (213, 96917), (1207, 17103), (3621, 5701)]