20988724

素因数分解:

$2^2\times {\mathrm{1303}}^1\times {\mathrm{4027}}^1$

素因数の和:5334

約数の個数: 12

約数和(自身を含む): 36767584

約数和(自身を除く): 15778860

約数列:

[1, 2, 4, 1303, 2606, 4027, 5212, 8054, 16108, 5247181, 10494362, 20988724]

約数ペア:

[(1, 20988724), (2, 10494362), (4, 5247181), (1303, 16108), (2606, 8054), (4027, 5212)]