19831345

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1049}}^1$

素因数の和:1272

約数の個数: 16

約数和(自身を含む): 25200000

約数和(自身を除く): 5368655

約数列:

[1, 5, 19, 95, 199, 995, 1049, 3781, 5245, 18905, 19931, 99655, 208751, 1043755, 3966269, 19831345]

約数ペア:

[(1, 19831345), (5, 3966269), (19, 1043755), (95, 208751), (199, 99655), (995, 19931), (1049, 18905), (3781, 5245)]