20545744

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29863}}^1$

素因数の和:29914

約数の個数: 20

約数和(自身を含む): 40734496

約数和(自身を除く): 20188752

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29863, 59726, 119452, 238904, 477808, 1284109, 2568218, 5136436, 10272872, 20545744]

約数ペア:

[(1, 20545744), (2, 10272872), (4, 5136436), (8, 2568218), (16, 1284109), (43, 477808), (86, 238904), (172, 119452), (344, 59726), (688, 29863)]