20439999

素因数分解:

$3^3\times {\mathrm{619}}^1\times {\mathrm{1223}}^1$

素因数の和:1851

約数の個数: 16

約数和(自身を含む): 30355200

約数和(自身を除く): 9915201

約数列:

[1, 3, 9, 27, 619, 1223, 1857, 3669, 5571, 11007, 16713, 33021, 757037, 2271111, 6813333, 20439999]

約数ペア:

[(1, 20439999), (3, 6813333), (9, 2271111), (27, 757037), (619, 33021), (1223, 16713), (1857, 11007), (3669, 5571)]