20391333985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1863073}}^1$

素因数の和:1863288

約数の個数: 16

約数和(自身を含む): 26828265600

約数和(自身を除く): 6436931615

約数列:

[1, 5, 11, 55, 199, 995, 2189, 10945, 1863073, 9315365, 20493803, 102469015, 370751527, 1853757635, 4078266797, 20391333985]

約数ペア:

[(1, 20391333985), (5, 4078266797), (11, 1853757635), (55, 370751527), (199, 102469015), (995, 20493803), (2189, 9315365), (10945, 1863073)]