28560411

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 49904640

約数和(自身を除く): 21344229

約数列:

[1, 3, 9, 11, 23, 27, 33, 37, 69, 99, 111, 113, 207, 253, 297, 333, 339, 407, 621, 759, 851, 999, 1017, 1221, 1243, 2277, 2553, 2599, 3051, 3663, 3729, 4181, 6831, 7659, 7797, 9361, 10989, 11187, 12543, 22977, 23391, 28083, 28589, 33561, 37629, 45991, 70173, 84249, 85767, 96163, 112887, 137973, 252747, 257301, 288489, 413919, 771903, 865467, 1057793, 1241757, 2596401, 3173379, 9520137, 28560411]

約数ペア:

[(1, 28560411), (3, 9520137), (9, 3173379), (11, 2596401), (23, 1241757), (27, 1057793), (33, 865467), (37, 771903), (69, 413919), (99, 288489), (111, 257301), (113, 252747), (207, 137973), (253, 112887), (297, 96163), (333, 85767), (339, 84249), (407, 70173), (621, 45991), (759, 37629), (851, 33561), (999, 28589), (1017, 28083), (1221, 23391), (1243, 22977), (2277, 12543), (2553, 11187), (2599, 10989), (3051, 9361), (3663, 7797), (3729, 7659), (4181, 6831)]