19807556

素因数分解:

$2^2\times {\mathrm{809}}^1\times {\mathrm{6121}}^1$

素因数の和:6934

約数の個数: 12

約数和(自身を含む): 34711740

約数和(自身を除く): 14904184

約数列:

[1, 2, 4, 809, 1618, 3236, 6121, 12242, 24484, 4951889, 9903778, 19807556]

約数ペア:

[(1, 19807556), (2, 9903778), (4, 4951889), (809, 24484), (1618, 12242), (3236, 6121)]