209707216

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{304807}}^1$

素因数の和:304858

約数の個数: 20

約数和(自身を含む): 415758112

約数和(自身を除く): 206050896

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 304807, 609614, 1219228, 2438456, 4876912, 13106701, 26213402, 52426804, 104853608, 209707216]

約数ペア:

[(1, 209707216), (2, 104853608), (4, 52426804), (8, 26213402), (16, 13106701), (43, 4876912), (86, 2438456), (172, 1219228), (344, 609614), (688, 304807)]