20873190247

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2207}}^1\times {\mathrm{2417}}^1$

素因数の和:4687

約数の個数: 32

約数和(自身を含む): 26310316032

約数和(自身を除く): 5437125785

約数列:

[1, 7, 13, 43, 91, 301, 559, 2207, 2417, 3913, 15449, 16919, 28691, 31421, 94901, 103931, 200837, 219947, 664307, 727517, 1233713, 1351103, 5334319, 8635991, 9457721, 37340233, 69346147, 229375717, 485423029, 1605630019, 2981884321, 20873190247]

約数ペア:

[(1, 20873190247), (7, 2981884321), (13, 1605630019), (43, 485423029), (91, 229375717), (301, 69346147), (559, 37340233), (2207, 9457721), (2417, 8635991), (3913, 5334319), (15449, 1351103), (16919, 1233713), (28691, 727517), (31421, 664307), (94901, 219947), (103931, 200837)]