208777219

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1\times {\mathrm{2087}}^1$

素因数の和:2586

約数の個数: 16

約数和(自身を含む): 246951936

約数和(自身を除く): 38174717

約数列:

[1, 7, 31, 217, 461, 2087, 3227, 14291, 14609, 64697, 100037, 452879, 962107, 6734749, 29825317, 208777219]

約数ペア:

[(1, 208777219), (7, 29825317), (31, 6734749), (217, 962107), (461, 452879), (2087, 100037), (3227, 64697), (14291, 14609)]