18881065

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3881}}^1$

素因数の和:4032

約数の個数: 16

約数和(自身を含む): 26087040

約数和(自身を除く): 7205975

約数列:

[1, 5, 7, 35, 139, 695, 973, 3881, 4865, 19405, 27167, 135835, 539459, 2697295, 3776213, 18881065]

約数ペア:

[(1, 18881065), (5, 3776213), (7, 2697295), (35, 539459), (139, 135835), (695, 27167), (973, 19405), (3881, 4865)]