20809802643

素因数分解:

$3^1\times 7^1\times {\mathrm{911}}^1\times {\mathrm{1087753}}^1$

素因数の和:1088674

約数の個数: 16

約数和(自身を含む): 31745012736

約数和(自身を除く): 10935210093

約数列:

[1, 3, 7, 21, 911, 2733, 6377, 19131, 1087753, 3263259, 7614271, 22842813, 990942983, 2972828949, 6936600881, 20809802643]

約数ペア:

[(1, 20809802643), (3, 6936600881), (7, 2972828949), (21, 990942983), (911, 22842813), (2733, 7614271), (6377, 3263259), (19131, 1087753)]