20860989

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{911}}^1$

素因数の和:1380

約数の個数: 16

約数和(自身を含む): 29548800

約数和(自身を除く): 8687811

約数列:

[1, 3, 17, 51, 449, 911, 1347, 2733, 7633, 15487, 22899, 46461, 409039, 1227117, 6953663, 20860989]

約数ペア:

[(1, 20860989), (3, 6953663), (17, 1227117), (51, 409039), (449, 46461), (911, 22899), (1347, 15487), (2733, 7633)]