20505776

素因数分解:

$2^4\times {\mathrm{337}}^1\times {\mathrm{3803}}^1$

素因数の和:4148

約数の個数: 20

約数和(自身を含む): 39858312

約数和(自身を除く): 19352536

約数列:

[1, 2, 4, 8, 16, 337, 674, 1348, 2696, 3803, 5392, 7606, 15212, 30424, 60848, 1281611, 2563222, 5126444, 10252888, 20505776]

約数ペア:

[(1, 20505776), (2, 10252888), (4, 5126444), (8, 2563222), (16, 1281611), (337, 60848), (674, 30424), (1348, 15212), (2696, 7606), (3803, 5392)]