20905791

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{743}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 28498176

約数和(自身を除く): 7592385

約数列:

[1, 3, 83, 113, 249, 339, 743, 2229, 9379, 28137, 61669, 83959, 185007, 251877, 6968597, 20905791]

約数ペア:

[(1, 20905791), (3, 6968597), (83, 251877), (113, 185007), (249, 83959), (339, 61669), (743, 28137), (2229, 9379)]