20812629

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 28350720

約数和(自身を除く): 7538091

約数列:

[1, 3, 79, 137, 237, 411, 641, 1923, 10823, 32469, 50639, 87817, 151917, 263451, 6937543, 20812629]

約数ペア:

[(1, 20812629), (3, 6937543), (79, 263451), (137, 151917), (237, 87817), (411, 50639), (641, 32469), (1923, 10823)]