20797287

素因数分解:

$3^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{2017}}^1$

素因数の和:2518

約数の個数: 16

約数和(自身を含む): 31771392

約数和(自身を除く): 10974105

約数列:

[1, 3, 7, 21, 491, 1473, 2017, 3437, 6051, 10311, 14119, 42357, 990347, 2971041, 6932429, 20797287]

約数ペア:

[(1, 20797287), (3, 6932429), (7, 2971041), (21, 990347), (491, 42357), (1473, 14119), (2017, 10311), (3437, 6051)]