81937247

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{16417}}^1$

素因数の和:16478

約数の個数: 16

約数和(自身を含む): 100872192

約数和(自身を除く): 18934945

約数列:

[1, 7, 23, 31, 161, 217, 713, 4991, 16417, 114919, 377591, 508927, 2643137, 3562489, 11705321, 81937247]

約数ペア:

[(1, 81937247), (7, 11705321), (23, 3562489), (31, 2643137), (161, 508927), (217, 377591), (713, 114919), (4991, 16417)]