20129040021

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{3967877}}^1$

素因数の和:3967988

約数の個数: 16

約数和(自身を含む): 28568721600

約数和(自身を除く): 8439681579

約数列:

[1, 3, 19, 57, 89, 267, 1691, 5073, 3967877, 11903631, 75389663, 226168989, 353141053, 1059423159, 6709680007, 20129040021]

約数ペア:

[(1, 20129040021), (3, 6709680007), (19, 1059423159), (57, 353141053), (89, 226168989), (267, 75389663), (1691, 11903631), (5073, 3967877)]