21879824

素因数分解:

$2^4\times {\mathrm{691}}^1\times {\mathrm{1979}}^1$

素因数の和:2678

約数の個数: 20

約数和(自身を含む): 42474960

約数和(自身を除く): 20595136

約数列:

[1, 2, 4, 8, 16, 691, 1382, 1979, 2764, 3958, 5528, 7916, 11056, 15832, 31664, 1367489, 2734978, 5469956, 10939912, 21879824]

約数ペア:

[(1, 21879824), (2, 10939912), (4, 5469956), (8, 2734978), (16, 1367489), (691, 31664), (1382, 15832), (1979, 11056), (2764, 7916), (3958, 5528)]