51691971

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{4139}}^1$

素因数の和:4346

約数の個数: 16

約数和(自身を含む): 72334080

約数和(自身を除く): 20642109

約数列:

[1, 3, 23, 69, 181, 543, 4139, 4163, 12417, 12489, 95197, 285591, 749159, 2247477, 17230657, 51691971]

約数ペア:

[(1, 51691971), (3, 17230657), (23, 2247477), (69, 749159), (181, 285591), (543, 95197), (4139, 12489), (4163, 12417)]