20761329

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1\times {\mathrm{521}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 28563840

約数和(自身を除く): 7802511

約数列:

[1, 3, 37, 111, 359, 521, 1077, 1563, 13283, 19277, 39849, 57831, 187039, 561117, 6920443, 20761329]

約数ペア:

[(1, 20761329), (3, 6920443), (37, 561117), (111, 187039), (359, 57831), (521, 39849), (1077, 19277), (1563, 13283)]