2090309851

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{17761}}^1$

素因数の和:17851

約数の個数: 32

約数和(自身を含む): 2700960768

約数和(自身を除く): 610650917

約数列:

[1, 7, 17, 23, 43, 119, 161, 301, 391, 731, 989, 2737, 5117, 6923, 16813, 17761, 117691, 124327, 301937, 408503, 763723, 2113559, 2859521, 5346061, 6944551, 12983291, 17565629, 48611857, 90883037, 122959403, 298615693, 2090309851]

約数ペア:

[(1, 2090309851), (7, 298615693), (17, 122959403), (23, 90883037), (43, 48611857), (119, 17565629), (161, 12983291), (301, 6944551), (391, 5346061), (731, 2859521), (989, 2113559), (2737, 763723), (5117, 408503), (6923, 301937), (16813, 124327), (17761, 117691)]