13081985

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2689}}^1$

素因数の和:2840

約数の個数: 16

約数和(自身を含む): 18076800

約数和(自身を除く): 4994815

約数列:

[1, 5, 7, 35, 139, 695, 973, 2689, 4865, 13445, 18823, 94115, 373771, 1868855, 2616397, 13081985]

約数ペア:

[(1, 13081985), (5, 2616397), (7, 1868855), (35, 373771), (139, 94115), (695, 18823), (973, 13445), (2689, 4865)]