19398938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43889}}^1$

素因数の和:43921

約数の個数: 16

約数和(自身を含む): 33180840

約数和(自身を除く): 13781902

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 43889, 87778, 570557, 746113, 1141114, 1492226, 9699469, 19398938]

約数ペア:

[(1, 19398938), (2, 9699469), (13, 1492226), (17, 1141114), (26, 746113), (34, 570557), (221, 87778), (442, 43889)]