19832690

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7717}}^1$

素因数の和:7981

約数の個数: 16

約数和(自身を含む): 35842392

約数和(自身を除く): 16009702

約数列:

[1, 2, 5, 10, 257, 514, 1285, 2570, 7717, 15434, 38585, 77170, 1983269, 3966538, 9916345, 19832690]

約数ペア:

[(1, 19832690), (2, 9916345), (5, 3966538), (10, 1983269), (257, 77170), (514, 38585), (1285, 15434), (2570, 7717)]