20997606

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499943}}^1$

素因数の和:499955

約数の個数: 16

約数和(自身を含む): 47994624

約数和(自身を除く): 26997018

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499943, 999886, 1499829, 2999658, 3499601, 6999202, 10498803, 20997606]

約数ペア:

[(1, 20997606), (2, 10498803), (3, 6999202), (6, 3499601), (7, 2999658), (14, 1499829), (21, 999886), (42, 499943)]