20899527

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{3499}}^1$

素因数の和:3694

約数の個数: 16

約数和(自身を含む): 30576000

約数和(自身を除く): 9676473

約数列:

[1, 3, 11, 33, 181, 543, 1991, 3499, 5973, 10497, 38489, 115467, 633319, 1899957, 6966509, 20899527]

約数ペア:

[(1, 20899527), (3, 6966509), (11, 1899957), (33, 633319), (181, 115467), (543, 38489), (1991, 10497), (3499, 5973)]