20658639489

素因数分解:

$3^1\times {\mathrm{409}}^1\times {\mathrm{1997}}^1\times {\mathrm{8431}}^1$

素因数の和:10840

約数の個数: 16

約数和(自身を含む): 27629303040

約数和(自身を除く): 6970663551

約数列:

[1, 3, 409, 1227, 1997, 5991, 8431, 25293, 816773, 2450319, 3448279, 10344837, 16836707, 50510121, 6886213163, 20658639489]

約数ペア:

[(1, 20658639489), (3, 6886213163), (409, 50510121), (1227, 16836707), (1997, 10344837), (5991, 3448279), (8431, 2450319), (25293, 816773)]