19696795

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 25773264

約数和(自身を除く): 6076469

約数列:

[1, 5, 17, 43, 85, 215, 289, 317, 731, 1445, 1585, 3655, 5389, 12427, 13631, 26945, 62135, 68155, 91613, 231727, 458065, 1158635, 3939359, 19696795]

約数ペア:

[(1, 19696795), (5, 3939359), (17, 1158635), (43, 458065), (85, 231727), (215, 91613), (289, 68155), (317, 62135), (731, 26945), (1445, 13631), (1585, 12427), (3655, 5389)]