21600995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{757}}^1$

素因数の和:1214

約数の個数: 16

約数和(自身を含む): 28015680

約数和(自身を除く): 6414685

約数列:

[1, 5, 13, 65, 439, 757, 2195, 3785, 5707, 9841, 28535, 49205, 332323, 1661615, 4320199, 21600995]

約数ペア:

[(1, 21600995), (5, 4320199), (13, 1661615), (65, 332323), (439, 49205), (757, 28535), (2195, 9841), (3785, 5707)]