19880366

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{809}}^1\times {\mathrm{1117}}^1$

素因数の和:1939

約数の個数: 16

約数和(自身を含む): 32600880

約数和(自身を除く): 12720514

約数列:

[1, 2, 11, 22, 809, 1117, 1618, 2234, 8899, 12287, 17798, 24574, 903653, 1807306, 9940183, 19880366]

約数ペア:

[(1, 19880366), (2, 9940183), (11, 1807306), (22, 903653), (809, 24574), (1117, 17798), (1618, 12287), (2234, 8899)]