20808039

素因数分解:

$3^1\times 7^1\times {\mathrm{839}}^1\times {\mathrm{1181}}^1$

素因数の和:2030

約数の個数: 16

約数和(自身を含む): 31772160

約数和(自身を除く): 10964121

約数列:

[1, 3, 7, 21, 839, 1181, 2517, 3543, 5873, 8267, 17619, 24801, 990859, 2972577, 6936013, 20808039]

約数ペア:

[(1, 20808039), (3, 6936013), (7, 2972577), (21, 990859), (839, 24801), (1181, 17619), (2517, 8267), (3543, 5873)]