20517063

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22721}}^1$

素因数の和:22774

約数の個数: 16

約数和(自身を含む): 31992576

約数和(自身を除く): 11475513

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22721, 68163, 159047, 477141, 977003, 2931009, 6839021, 20517063]

約数ペア:

[(1, 20517063), (3, 6839021), (7, 2931009), (21, 977003), (43, 477141), (129, 159047), (301, 68163), (903, 22721)]