16981456

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{2521}}^1$

素因数の和:2950

約数の個数: 20

約数和(自身を含む): 32992804

約数和(自身を除く): 16011348

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 2521, 3368, 5042, 6736, 10084, 20168, 40336, 1061341, 2122682, 4245364, 8490728, 16981456]

約数ペア:

[(1, 16981456), (2, 8490728), (4, 4245364), (8, 2122682), (16, 1061341), (421, 40336), (842, 20168), (1684, 10084), (2521, 6736), (3368, 5042)]