13517975

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{1871}}^1$

素因数の和:1915

約数の個数: 18

約数和(自身を含む): 17815824

約数和(自身を除く): 4297849

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 1871, 7225, 9355, 31807, 46775, 159035, 540719, 795175, 2703595, 13517975]

約数ペア:

[(1, 13517975), (5, 2703595), (17, 795175), (25, 540719), (85, 159035), (289, 46775), (425, 31807), (1445, 9355), (1871, 7225)]