20578816

素因数分解:

$2^9\times {\mathrm{40193}}^1$

素因数の和:40211

約数の個数: 20

約数和(自身を含む): 41118462

約数和(自身を除く): 20539646

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 40193, 80386, 160772, 321544, 643088, 1286176, 2572352, 5144704, 10289408, 20578816]

約数ペア:

[(1, 20578816), (2, 10289408), (4, 5144704), (8, 2572352), (16, 1286176), (32, 643088), (64, 321544), (128, 160772), (256, 80386), (512, 40193)]