243368321

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 307077120

約数和(自身を除く): 63708799

約数列:

[1, 7, 19, 31, 67, 133, 217, 469, 589, 881, 1273, 2077, 4123, 6167, 8911, 14539, 16739, 27311, 39463, 59027, 117173, 191177, 276241, 413189, 518909, 1121513, 1829837, 3632363, 7850591, 12808859, 34766903, 243368321]

約数ペア:

[(1, 243368321), (7, 34766903), (19, 12808859), (31, 7850591), (67, 3632363), (133, 1829837), (217, 1121513), (469, 518909), (589, 413189), (881, 276241), (1273, 191177), (2077, 117173), (4123, 59027), (6167, 39463), (8911, 27311), (14539, 16739)]