20834989

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:780

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 3737171

約数列:

[1, 7, 53, 89, 371, 623, 631, 4417, 4717, 33019, 33443, 56159, 234101, 393113, 2976427, 20834989]

約数ペア:

[(1, 20834989), (7, 2976427), (53, 393113), (89, 234101), (371, 56159), (623, 33443), (631, 33019), (4417, 4717)]