19712759

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:562

約数の個数: 16

約数和(自身を含む): 22286880

約数和(自身を除く): 2574121

約数列:

[1, 11, 41, 109, 401, 451, 1199, 4411, 4469, 16441, 43709, 49159, 180851, 480799, 1792069, 19712759]

約数ペア:

[(1, 19712759), (11, 1792069), (41, 480799), (109, 180851), (401, 49159), (451, 43709), (1199, 16441), (4411, 4469)]