20385616

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11689}}^1$

素因数の和:11806

約数の個数: 20

約数和(自身を含む): 39862900

約数和(自身を除く): 19477284

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11689, 23378, 46756, 93512, 187024, 1274101, 2548202, 5096404, 10192808, 20385616]

約数ペア:

[(1, 20385616), (2, 10192808), (4, 5096404), (8, 2548202), (16, 1274101), (109, 187024), (218, 93512), (436, 46756), (872, 23378), (1744, 11689)]