81857889

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{167}}^1\times {\mathrm{509}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 120294720

約数和(自身を除く): 38436831

約数列:

[1, 3, 9, 107, 167, 321, 501, 509, 963, 1503, 1527, 4581, 17869, 53607, 54463, 85003, 160821, 163389, 255009, 490167, 765027, 9095321, 27285963, 81857889]

約数ペア:

[(1, 81857889), (3, 27285963), (9, 9095321), (107, 765027), (167, 490167), (321, 255009), (501, 163389), (509, 160821), (963, 85003), (1503, 54463), (1527, 53607), (4581, 17869)]