21870027

素因数分解:

$3^3\times {\mathrm{241}}^1\times {\mathrm{3361}}^1$

素因数の和:3611

約数の個数: 16

約数和(自身を含む): 32544160

約数和(自身を除く): 10674133

約数列:

[1, 3, 9, 27, 241, 723, 2169, 3361, 6507, 10083, 30249, 90747, 810001, 2430003, 7290009, 21870027]

約数ペア:

[(1, 21870027), (3, 7290009), (9, 2430003), (27, 810001), (241, 90747), (723, 30249), (2169, 10083), (3361, 6507)]