28784889

素因数分解:

$3^4\times 7^1\times {\mathrm{50767}}^1$

素因数の和:50786

約数の個数: 20

約数和(自身を含む): 49143424

約数和(自身を除く): 20358535

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 50767, 152301, 355369, 456903, 1066107, 1370709, 3198321, 4112127, 9594963, 28784889]

約数ペア:

[(1, 28784889), (3, 9594963), (7, 4112127), (9, 3198321), (21, 1370709), (27, 1066107), (63, 456903), (81, 355369), (189, 152301), (567, 50767)]