18929477

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 22118400

約数和(自身を除く): 3188923

約数列:

[1, 7, 107, 127, 199, 749, 889, 1393, 13589, 21293, 25273, 95123, 149051, 176911, 2704211, 18929477]

約数ペア:

[(1, 18929477), (7, 2704211), (107, 176911), (127, 149051), (199, 95123), (749, 25273), (889, 21293), (1393, 13589)]