18988862

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{997}}^1$

素因数の和:1195

約数の個数: 16

約数和(自身を含む): 29101680

約数和(自身を除く): 10112818

約数列:

[1, 2, 89, 107, 178, 214, 997, 1994, 9523, 19046, 88733, 106679, 177466, 213358, 9494431, 18988862]

約数ペア:

[(1, 18988862), (2, 9494431), (89, 213358), (107, 177466), (178, 106679), (214, 88733), (997, 19046), (1994, 9523)]