20289702951

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7489739}}^1$

素因数の和:7489795

約数の個数: 24

約数和(自身を含む): 34273050240

約数和(自身を除く): 13983347289

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7489739, 22469217, 52428173, 67407651, 157284519, 322058777, 471853557, 966176331, 2254411439, 2898528993, 6763234317, 20289702951]

約数ペア:

[(1, 20289702951), (3, 6763234317), (7, 2898528993), (9, 2254411439), (21, 966176331), (43, 471853557), (63, 322058777), (129, 157284519), (301, 67407651), (387, 52428173), (903, 22469217), (2709, 7489739)]