13091855

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19687}}^1$

素因数の和:19718

約数の個数: 16

約数和(自身を含む): 18900480

約数和(自身を除く): 5808625

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 19687, 98435, 137809, 374053, 689045, 1870265, 2618371, 13091855]

約数ペア:

[(1, 13091855), (5, 2618371), (7, 1870265), (19, 689045), (35, 374053), (95, 137809), (133, 98435), (665, 19687)]