20408143

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{541}}^1$

素因数の和:882

約数の個数: 16

約数和(自身を含む): 24819264

約数和(自身を除く): 4411121

約数列:

[1, 7, 17, 119, 317, 541, 2219, 3787, 5389, 9197, 37723, 64379, 171497, 1200479, 2915449, 20408143]

約数ペア:

[(1, 20408143), (7, 2915449), (17, 1200479), (119, 171497), (317, 64379), (541, 37723), (2219, 9197), (3787, 5389)]