21680844

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{25447}}^1$

素因数の和:25525

約数の個数: 24

約数和(自身を含む): 51303168

約数和(自身を除く): 29622324

約数列:

[1, 2, 3, 4, 6, 12, 71, 142, 213, 284, 426, 852, 25447, 50894, 76341, 101788, 152682, 305364, 1806737, 3613474, 5420211, 7226948, 10840422, 21680844]

約数ペア:

[(1, 21680844), (2, 10840422), (3, 7226948), (4, 5420211), (6, 3613474), (12, 1806737), (71, 305364), (142, 152682), (213, 101788), (284, 76341), (426, 50894), (852, 25447)]