20390095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11959}}^1$

素因数の和:12006

約数の個数: 16

約数和(自身を含む): 27555840

約数和(自身を除く): 7165745

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11959, 59795, 131549, 370729, 657745, 1853645, 4078019, 20390095]

約数ペア:

[(1, 20390095), (5, 4078019), (11, 1853645), (31, 657745), (55, 370729), (155, 131549), (341, 59795), (1705, 11959)]