81273689

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{2687}}^1$

素因数の和:2872

約数の個数: 16

約数和(自身を含む): 96768000

約数和(自身を除く): 15494311

約数列:

[1, 7, 29, 149, 203, 1043, 2687, 4321, 18809, 30247, 77923, 400363, 545461, 2802541, 11610527, 81273689]

約数ペア:

[(1, 81273689), (7, 11610527), (29, 2802541), (149, 545461), (203, 400363), (1043, 77923), (2687, 30247), (4321, 18809)]