217804951

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1033}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 273943824

約数和(自身を除く): 56138873

約数列:

[1, 7, 13, 49, 91, 331, 637, 1033, 2317, 4303, 7231, 13429, 16219, 30121, 50617, 94003, 210847, 341923, 658021, 2393461, 4444999, 16754227, 31114993, 217804951]

約数ペア:

[(1, 217804951), (7, 31114993), (13, 16754227), (49, 4444999), (91, 2393461), (331, 658021), (637, 341923), (1033, 210847), (2317, 94003), (4303, 50617), (7231, 30121), (13429, 16219)]