20506191

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1\times {\mathrm{569}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 28153440

約数和(自身を除く): 7647249

約数列:

[1, 3, 41, 123, 293, 569, 879, 1707, 12013, 23329, 36039, 69987, 166717, 500151, 6835397, 20506191]

約数ペア:

[(1, 20506191), (3, 6835397), (41, 500151), (123, 166717), (293, 69987), (569, 36039), (879, 23329), (1707, 12013)]