821860143

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1109123}}^1$

素因数の和:1109158

約数の個数: 16

約数和(自身を含む): 1242218880

約数和(自身を除く): 420358737

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 1109123, 3327369, 14418599, 21073337, 43255797, 63220011, 273953381, 821860143]

約数ペア:

[(1, 821860143), (3, 273953381), (13, 63220011), (19, 43255797), (39, 21073337), (57, 14418599), (247, 3327369), (741, 1109123)]