18909910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{82217}}^1$

素因数の和:82247

約数の個数: 16

約数和(自身を含む): 35518176

約数和(自身を除く): 16608266

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 82217, 164434, 411085, 822170, 1890991, 3781982, 9454955, 18909910]

約数ペア:

[(1, 18909910), (2, 9454955), (5, 3781982), (10, 1890991), (23, 822170), (46, 411085), (115, 164434), (230, 82217)]