20807983

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9203}}^1$

素因数の和:9246

約数の個数: 16

約数和(自身を含む): 26507520

約数和(自身を除く): 5699537

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 9203, 64421, 156451, 174857, 1095157, 1223999, 2972569, 20807983]

約数ペア:

[(1, 20807983), (7, 2972569), (17, 1223999), (19, 1095157), (119, 174857), (133, 156451), (323, 64421), (2261, 9203)]