81218753

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4999}}^1$

素因数の和:5228

約数の個数: 16

約数和(自身を含む): 101760000

約数和(自身を除く): 20541247

約数列:

[1, 7, 11, 77, 211, 1477, 2321, 4999, 16247, 34993, 54989, 384923, 1054789, 7383523, 11602679, 81218753]

約数ペア:

[(1, 81218753), (7, 11602679), (11, 7383523), (77, 1054789), (211, 384923), (1477, 54989), (2321, 34993), (4999, 16247)]