20806919

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22349}}^1$

素因数の和:22382

約数の個数: 12

約数和(自身を含む): 25479000

約数和(自身を除く): 4672081

約数列:

[1, 7, 19, 49, 133, 931, 22349, 156443, 424631, 1095101, 2972417, 20806919]

約数ペア:

[(1, 20806919), (7, 2972417), (19, 1095101), (49, 424631), (133, 156443), (931, 22349)]