20209287

素因数分解:

$3^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{1409}}^1$

素因数の和:2102

約数の個数: 16

約数和(自身を含む): 30862080

約数和(自身を除く): 10652793

約数列:

[1, 3, 7, 21, 683, 1409, 2049, 4227, 4781, 9863, 14343, 29589, 962347, 2887041, 6736429, 20209287]

約数ペア:

[(1, 20209287), (3, 6736429), (7, 2887041), (21, 962347), (683, 29589), (1409, 14343), (2049, 9863), (4227, 4781)]