20605949

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{617}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 25471488

約数和(自身を除く): 4865539

約数列:

[1, 7, 13, 91, 367, 617, 2569, 4319, 4771, 8021, 33397, 56147, 226439, 1585073, 2943707, 20605949]

約数ペア:

[(1, 20605949), (7, 2943707), (13, 1585073), (91, 226439), (367, 56147), (617, 33397), (2569, 8021), (4319, 4771)]