20288163

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{9029}}^1$

素因数の和:9146

約数の個数: 16

約数和(自身を含む): 31207680

約数和(自身を除く): 10919517

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 9029, 27087, 63203, 189609, 966103, 2898309, 6762721, 20288163]

約数ペア:

[(1, 20288163), (3, 6762721), (7, 2898309), (21, 966103), (107, 189609), (321, 63203), (749, 27087), (2247, 9029)]