19004787

素因数分解:

$3^5\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 28684656

約数和(自身を除く): 9679869

約数列:

[1, 3, 9, 27, 81, 197, 243, 397, 591, 1191, 1773, 3573, 5319, 10719, 15957, 32157, 47871, 78209, 96471, 234627, 703881, 2111643, 6334929, 19004787]

約数ペア:

[(1, 19004787), (3, 6334929), (9, 2111643), (27, 703881), (81, 234627), (197, 96471), (243, 78209), (397, 47871), (591, 32157), (1191, 15957), (1773, 10719), (3573, 5319)]