20691376

素因数分解:

$2^4\times {\mathrm{563}}^1\times {\mathrm{2297}}^1$

素因数の和:2868

約数の個数: 20

約数和(自身を含む): 40178232

約数和(自身を除く): 19486856

約数列:

[1, 2, 4, 8, 16, 563, 1126, 2252, 2297, 4504, 4594, 9008, 9188, 18376, 36752, 1293211, 2586422, 5172844, 10345688, 20691376]

約数ペア:

[(1, 20691376), (2, 10345688), (4, 5172844), (8, 2586422), (16, 1293211), (563, 36752), (1126, 18376), (2252, 9188), (2297, 9008), (4504, 4594)]