21494576

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{3191}}^1$

素因数の和:3620

約数の個数: 20

約数和(自身を含む): 41757744

約数和(自身を除く): 20263168

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 3191, 3368, 6382, 6736, 12764, 25528, 51056, 1343411, 2686822, 5373644, 10747288, 21494576]

約数ペア:

[(1, 21494576), (2, 10747288), (4, 5373644), (8, 2686822), (16, 1343411), (421, 51056), (842, 25528), (1684, 12764), (3191, 6736), (3368, 6382)]