20731929

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{743}}^1$

素因数の和:948

約数の個数: 16

約数和(自身を含む): 28283904

約数和(自身を除く): 7551975

約数列:

[1, 3, 71, 131, 213, 393, 743, 2229, 9301, 27903, 52753, 97333, 158259, 291999, 6910643, 20731929]

約数ペア:

[(1, 20731929), (3, 6910643), (71, 291999), (131, 158259), (213, 97333), (393, 52753), (743, 27903), (2229, 9301)]