20803621118

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{64607519}}^1$

素因数の和:64607551

約数の個数: 16

約数和(自身を含む): 37213931520

約数和(自身を除く): 16410310402

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 64607519, 129215038, 452252633, 904505266, 1485972937, 2971945874, 10401810559, 20803621118]

約数ペア:

[(1, 20803621118), (2, 10401810559), (7, 2971945874), (14, 1485972937), (23, 904505266), (46, 452252633), (161, 129215038), (322, 64607519)]