20784128

素因数分解:

$2^{10}\times {\mathrm{20297}}^1$

素因数の和:20317

約数の個数: 22

約数和(自身を含む): 41550006

約数和(自身を除く): 20765878

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 20297, 40594, 81188, 162376, 324752, 649504, 1299008, 2598016, 5196032, 10392064, 20784128]

約数ペア:

[(1, 20784128), (2, 10392064), (4, 5196032), (8, 2598016), (16, 1299008), (32, 649504), (64, 324752), (128, 162376), (256, 81188), (512, 40594), (1024, 20297)]