20697663

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22921}}^1$

素因数の和:22974

約数の個数: 16

約数和(自身を含む): 32274176

約数和(自身を除く): 11576513

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22921, 68763, 160447, 481341, 985603, 2956809, 6899221, 20697663]

約数ペア:

[(1, 20697663), (3, 6899221), (7, 2956809), (21, 985603), (43, 481341), (129, 160447), (301, 68763), (903, 22921)]