20507858

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{63689}}^1$

素因数の和:63721

約数の個数: 16

約数和(自身を含む): 36685440

約数和(自身を除く): 16177582

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 63689, 127378, 445823, 891646, 1464847, 2929694, 10253929, 20507858]

約数ペア:

[(1, 20507858), (2, 10253929), (7, 2929694), (14, 1464847), (23, 891646), (46, 445823), (161, 127378), (322, 63689)]