81717643

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2339}}^1$

素因数の和:2407

約数の個数: 24

約数和(自身を含む): 102435840

約数和(自身を除く): 20718197

約数列:

[1, 7, 23, 31, 49, 161, 217, 713, 1127, 1519, 2339, 4991, 16373, 34937, 53797, 72509, 114611, 376579, 507563, 1667707, 2636053, 3552941, 11673949, 81717643]

約数ペア:

[(1, 81717643), (7, 11673949), (23, 3552941), (31, 2636053), (49, 1667707), (161, 507563), (217, 376579), (713, 114611), (1127, 72509), (1519, 53797), (2339, 34937), (4991, 16373)]