20744619

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22973}}^1$

素因数の和:23026

約数の個数: 16

約数和(自身を含む): 32347392

約数和(自身を除く): 11602773

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22973, 68919, 160811, 482433, 987839, 2963517, 6914873, 20744619]

約数ペア:

[(1, 20744619), (3, 6914873), (7, 2963517), (21, 987839), (43, 482433), (129, 160811), (301, 68919), (903, 22973)]