28087059

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 23522541

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 47, 77, 91, 141, 143, 199, 231, 273, 329, 429, 517, 597, 611, 987, 1001, 1393, 1551, 1833, 2189, 2587, 3003, 3619, 4179, 4277, 6567, 6721, 7761, 9353, 10857, 12831, 15323, 18109, 20163, 28059, 28457, 45969, 47047, 54327, 65471, 85371, 102883, 121589, 141141, 196413, 199199, 308649, 364767, 597597, 720181, 851123, 1337479, 2160543, 2553369, 4012437, 9362353, 28087059]

約数ペア:

[(1, 28087059), (3, 9362353), (7, 4012437), (11, 2553369), (13, 2160543), (21, 1337479), (33, 851123), (39, 720181), (47, 597597), (77, 364767), (91, 308649), (141, 199199), (143, 196413), (199, 141141), (231, 121589), (273, 102883), (329, 85371), (429, 65471), (517, 54327), (597, 47047), (611, 45969), (987, 28457), (1001, 28059), (1393, 20163), (1551, 18109), (1833, 15323), (2189, 12831), (2587, 10857), (3003, 9353), (3619, 7761), (4179, 6721), (4277, 6567)]