20520387117

素因数分解:

$3^2\times {\mathrm{431}}^1\times {\mathrm{5290123}}^1$

素因数の和:5290560

約数の個数: 12

約数和(自身を含む): 29709336384

約数和(自身を除く): 9188949267

約数列:

[1, 3, 9, 431, 1293, 3879, 5290123, 15870369, 47611107, 2280043013, 6840129039, 20520387117]

約数ペア:

[(1, 20520387117), (3, 6840129039), (9, 2280043013), (431, 47611107), (1293, 15870369), (3879, 5290123)]