20904828

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{248867}}^1$

素因数の和:248881

約数の個数: 24

約数和(自身を含む): 55746432

約数和(自身を除く): 34841604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 248867, 497734, 746601, 995468, 1493202, 1742069, 2986404, 3484138, 5226207, 6968276, 10452414, 20904828]

約数ペア:

[(1, 20904828), (2, 10452414), (3, 6968276), (4, 5226207), (6, 3484138), (7, 2986404), (12, 1742069), (14, 1493202), (21, 995468), (28, 746601), (42, 497734), (84, 248867)]