18806255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 25011168

約数和(自身を除く): 6204913

約数列:

[1, 5, 13, 53, 65, 103, 265, 515, 689, 1339, 2809, 3445, 5459, 6695, 14045, 27295, 36517, 70967, 182585, 289327, 354835, 1446635, 3761251, 18806255]

約数ペア:

[(1, 18806255), (5, 3761251), (13, 1446635), (53, 354835), (65, 289327), (103, 182585), (265, 70967), (515, 36517), (689, 27295), (1339, 14045), (2809, 6695), (3445, 5459)]