12691385

素因数分解:

$5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1039}}^1$

素因数の和:1400

約数の個数: 16

約数和(自身を含む): 17472000

約数和(自身を除く): 4780615

約数列:

[1, 5, 7, 35, 349, 1039, 1745, 2443, 5195, 7273, 12215, 36365, 362611, 1813055, 2538277, 12691385]

約数ペア:

[(1, 12691385), (5, 2538277), (7, 1813055), (35, 362611), (349, 36365), (1039, 12215), (1745, 7273), (2443, 5195)]