20788445

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1889}}^1$

素因数の和:1996

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5338915

約数列:

[1, 5, 31, 71, 155, 355, 1889, 2201, 9445, 11005, 58559, 134119, 292795, 670595, 4157689, 20788445]

約数ペア:

[(1, 20788445), (5, 4157689), (31, 670595), (71, 292795), (155, 134119), (355, 58559), (1889, 11005), (2201, 9445)]