21106810

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2609}}^1$

素因数の和:3425

約数の個数: 16

約数和(自身を含む): 38053800

約数和(自身を除く): 16946990

約数列:

[1, 2, 5, 10, 809, 1618, 2609, 4045, 5218, 8090, 13045, 26090, 2110681, 4221362, 10553405, 21106810]

約数ペア:

[(1, 21106810), (2, 10553405), (5, 4221362), (10, 2110681), (809, 26090), (1618, 13045), (2609, 8090), (4045, 5218)]