15978385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{593}}^1$

素因数の和:932

約数の個数: 16

約数和(自身を含む): 20400336

約数和(自身を除く): 4421951

約数列:

[1, 5, 17, 85, 317, 593, 1585, 2965, 5389, 10081, 26945, 50405, 187981, 939905, 3195677, 15978385]

約数ペア:

[(1, 15978385), (5, 3195677), (17, 939905), (85, 187981), (317, 50405), (593, 26945), (1585, 10081), (2965, 5389)]