12513865

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3929}}^1$

素因数の和:3961

約数の個数: 24

約数和(自身を含む): 18816840

約数和(自身を除く): 6302975

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 3929, 19645, 27503, 51077, 137515, 192521, 255385, 357539, 962605, 1787695, 2502773, 12513865]

約数ペア:

[(1, 12513865), (5, 2502773), (7, 1787695), (13, 962605), (35, 357539), (49, 255385), (65, 192521), (91, 137515), (245, 51077), (455, 27503), (637, 19645), (3185, 3929)]