20767521

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1\times {\mathrm{373}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 28280384

約数和(自身を除く): 7512863

約数列:

[1, 3, 67, 201, 277, 373, 831, 1119, 18559, 24991, 55677, 74973, 103321, 309963, 6922507, 20767521]

約数ペア:

[(1, 20767521), (3, 6922507), (67, 309963), (201, 103321), (277, 74973), (373, 55677), (831, 24991), (1119, 18559)]