20816703

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10859}}^1$

素因数の和:10939

約数の個数: 16

約数和(自身を含む): 31276800

約数和(自身を除く): 10460097

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10859, 32577, 97731, 293193, 770989, 2312967, 6938901, 20816703]

約数ペア:

[(1, 20816703), (3, 6938901), (9, 2312967), (27, 770989), (71, 293193), (213, 97731), (639, 32577), (1917, 10859)]