20439155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19559}}^1$

素因数の和:19594

約数の個数: 16

約数和(自身を含む): 28166400

約数和(自身を除く): 7727245

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19559, 97795, 215149, 371621, 1075745, 1858105, 4087831, 20439155]

約数ペア:

[(1, 20439155), (5, 4087831), (11, 1858105), (19, 1075745), (55, 371621), (95, 215149), (209, 97795), (1045, 19559)]