20841904

素因数分解:

$2^4\times {\mathrm{1009}}^1\times {\mathrm{1291}}^1$

素因数の和:2308

約数の個数: 20

約数和(自身を含む): 40452520

約数和(自身を除く): 19610616

約数列:

[1, 2, 4, 8, 16, 1009, 1291, 2018, 2582, 4036, 5164, 8072, 10328, 16144, 20656, 1302619, 2605238, 5210476, 10420952, 20841904]

約数ペア:

[(1, 20841904), (2, 10420952), (4, 5210476), (8, 2605238), (16, 1302619), (1009, 20656), (1291, 16144), (2018, 10328), (2582, 8072), (4036, 5164)]