12729745

素因数分解:

$5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{907}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 17520768

約数和(自身を除く): 4791023

約数列:

[1, 5, 7, 35, 401, 907, 2005, 2807, 4535, 6349, 14035, 31745, 363707, 1818535, 2545949, 12729745]

約数ペア:

[(1, 12729745), (5, 2545949), (7, 1818535), (35, 363707), (401, 31745), (907, 14035), (2005, 6349), (2807, 4535)]