19785712

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17417}}^1$

素因数の和:17496

約数の個数: 20

約数和(自身を含む): 38876976

約数和(自身を除く): 19091264

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17417, 34834, 69668, 139336, 278672, 1236607, 2473214, 4946428, 9892856, 19785712]

約数ペア:

[(1, 19785712), (2, 9892856), (4, 4946428), (8, 2473214), (16, 1236607), (71, 278672), (142, 139336), (284, 69668), (568, 34834), (1136, 17417)]