28865889

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:451

約数の個数: 40

約数和(自身を含む): 47160960

約数和(自身を除く): 18295071

約数列:

[1, 3, 9, 13, 27, 39, 79, 81, 117, 237, 347, 351, 711, 1027, 1041, 1053, 2133, 3081, 3123, 4511, 6399, 9243, 9369, 13533, 27413, 27729, 28107, 40599, 82239, 83187, 121797, 246717, 356369, 365391, 740151, 1069107, 2220453, 3207321, 9621963, 28865889]

約数ペア:

[(1, 28865889), (3, 9621963), (9, 3207321), (13, 2220453), (27, 1069107), (39, 740151), (79, 365391), (81, 356369), (117, 246717), (237, 121797), (347, 83187), (351, 82239), (711, 40599), (1027, 28107), (1041, 27729), (1053, 27413), (2133, 13533), (3081, 9369), (3123, 9243), (4511, 6399)]