18959739

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2393}}^1$

素因数の和:2554

約数の個数: 16

約数和(自身を含む): 26812800

約数和(自身を除く): 7853061

約数列:

[1, 3, 19, 57, 139, 417, 2393, 2641, 7179, 7923, 45467, 136401, 332627, 997881, 6319913, 18959739]

約数ペア:

[(1, 18959739), (3, 6319913), (19, 997881), (57, 332627), (139, 136401), (417, 45467), (2393, 7923), (2641, 7179)]