19906443

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{739}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 29898960

約数和(自身を除く): 9992517

約数列:

[1, 3, 9, 41, 73, 123, 219, 369, 657, 739, 2217, 2993, 6651, 8979, 26937, 30299, 53947, 90897, 161841, 272691, 485523, 2211827, 6635481, 19906443]

約数ペア:

[(1, 19906443), (3, 6635481), (9, 2211827), (41, 485523), (73, 272691), (123, 161841), (219, 90897), (369, 53947), (657, 30299), (739, 26937), (2217, 8979), (2993, 6651)]