27905409

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10301}}^1$

素因数の和:10357

約数の個数: 24

約数和(自身を含む): 47141952

約数和(自身を除く): 19236543

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 10301, 30903, 72107, 92709, 216321, 442943, 648963, 1328829, 3100601, 3986487, 9301803, 27905409]

約数ペア:

[(1, 27905409), (3, 9301803), (7, 3986487), (9, 3100601), (21, 1328829), (43, 648963), (63, 442943), (129, 216321), (301, 92709), (387, 72107), (903, 30903), (2709, 10301)]