28253709

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6637}}^1$

素因数の和:6697

約数の個数: 24

約数和(自身を含む): 45563232

約数和(自身を除く): 17309523

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 6637, 19911, 59733, 73007, 219021, 285391, 657063, 856173, 2568519, 3139301, 9417903, 28253709]

約数ペア:

[(1, 28253709), (3, 9417903), (9, 3139301), (11, 2568519), (33, 856173), (43, 657063), (99, 285391), (129, 219021), (387, 73007), (473, 59733), (1419, 19911), (4257, 6637)]