20881797

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{1237}}^1$

素因数の和:1588

約数の個数: 16

約数和(自身を含む): 29593152

約数和(自身を除く): 8711355

約数列:

[1, 3, 17, 51, 331, 993, 1237, 3711, 5627, 16881, 21029, 63087, 409447, 1228341, 6960599, 20881797]

約数ペア:

[(1, 20881797), (3, 6960599), (17, 1228341), (51, 409447), (331, 63087), (993, 21029), (1237, 16881), (3711, 5627)]