12691805

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3389}}^1$

素因数の和:3508

約数の個数: 16

約数和(自身を含む): 17573760

約数和(自身を除く): 4881955

約数列:

[1, 5, 7, 35, 107, 535, 749, 3389, 3745, 16945, 23723, 118615, 362623, 1813115, 2538361, 12691805]

約数ペア:

[(1, 12691805), (5, 2538361), (7, 1813115), (35, 362623), (107, 118615), (535, 23723), (749, 16945), (3389, 3745)]