28612311

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{337}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 47244288

約数和(自身を除く): 18631977

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 311, 337, 933, 1011, 2177, 2359, 4043, 4381, 6531, 7077, 12129, 13143, 28301, 30667, 84903, 92001, 104807, 314421, 733649, 1362491, 2200947, 4087473, 9537437, 28612311]

約数ペア:

[(1, 28612311), (3, 9537437), (7, 4087473), (13, 2200947), (21, 1362491), (39, 733649), (91, 314421), (273, 104807), (311, 92001), (337, 84903), (933, 30667), (1011, 28301), (2177, 13143), (2359, 12129), (4043, 7077), (4381, 6531)]