19109804

素因数分解:

$2^2\times 7^2\times {\mathrm{97499}}^1$

素因数の和:97517

約数の個数: 18

約数和(自身を含む): 38902500

約数和(自身を除く): 19792696

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 97499, 194998, 389996, 682493, 1364986, 2729972, 4777451, 9554902, 19109804]

約数ペア:

[(1, 19109804), (2, 9554902), (4, 4777451), (7, 2729972), (14, 1364986), (28, 682493), (49, 389996), (98, 194998), (196, 97499)]