19517404

素因数分解:

$2^2\times {\mathrm{431}}^1\times {\mathrm{11321}}^1$

素因数の和:11756

約数の個数: 12

約数和(自身を含む): 34237728

約数和(自身を除く): 14720324

約数列:

[1, 2, 4, 431, 862, 1724, 11321, 22642, 45284, 4879351, 9758702, 19517404]

約数ペア:

[(1, 19517404), (2, 9758702), (4, 4879351), (431, 45284), (862, 22642), (1724, 11321)]