20012828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1013}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 38329200

約数和(自身を除く): 18316372

約数列:

[1, 2, 4, 11, 22, 44, 449, 898, 1013, 1796, 2026, 4052, 4939, 9878, 11143, 19756, 22286, 44572, 454837, 909674, 1819348, 5003207, 10006414, 20012828]

約数ペア:

[(1, 20012828), (2, 10006414), (4, 5003207), (11, 1819348), (22, 909674), (44, 454837), (449, 44572), (898, 22286), (1013, 19756), (1796, 11143), (2026, 9878), (4052, 4939)]