20213169

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2707}}^1$

素因数の和:2860

約数の個数: 16

約数和(自身を含む): 28596480

約数和(自身を除く): 8383311

約数列:

[1, 3, 19, 57, 131, 393, 2489, 2707, 7467, 8121, 51433, 154299, 354617, 1063851, 6737723, 20213169]

約数ペア:

[(1, 20213169), (3, 6737723), (19, 1063851), (57, 354617), (131, 154299), (393, 51433), (2489, 8121), (2707, 7467)]