21169912

素因数分解:

$2^3\times {\mathrm{809}}^1\times {\mathrm{3271}}^1$

素因数の和:4086

約数の個数: 16

約数和(自身を含む): 39754800

約数和(自身を除く): 18584888

約数列:

[1, 2, 4, 8, 809, 1618, 3236, 3271, 6472, 6542, 13084, 26168, 2646239, 5292478, 10584956, 21169912]

約数ペア:

[(1, 21169912), (2, 10584956), (4, 5292478), (8, 2646239), (809, 26168), (1618, 13084), (3236, 6542), (3271, 6472)]