21950440

素因数分解:

$2^3\times 5^1\times {\mathrm{548761}}^1$

素因数の和:548772

約数の個数: 16

約数和(自身を含む): 49388580

約数和(自身を除く): 27438140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 548761, 1097522, 2195044, 2743805, 4390088, 5487610, 10975220, 21950440]

約数ペア:

[(1, 21950440), (2, 10975220), (4, 5487610), (5, 4390088), (8, 2743805), (10, 2195044), (20, 1097522), (40, 548761)]