81216079

素因数分解:

$7^2\times {\mathrm{199}}^1\times {\mathrm{8329}}^1$

素因数の和:8542

約数の個数: 12

約数和(自身を含む): 94962000

約数和(自身を除く): 13745921

約数列:

[1, 7, 49, 199, 1393, 8329, 9751, 58303, 408121, 1657471, 11602297, 81216079]

約数ペア:

[(1, 81216079), (7, 11602297), (49, 1657471), (199, 408121), (1393, 58303), (8329, 9751)]