20717528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199207}}^1$

素因数の和:199226

約数の個数: 16

約数和(自身を含む): 41833680

約数和(自身を除く): 21116152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199207, 398414, 796828, 1593656, 2589691, 5179382, 10358764, 20717528]

約数ペア:

[(1, 20717528), (2, 10358764), (4, 5179382), (8, 2589691), (13, 1593656), (26, 796828), (52, 398414), (104, 199207)]