20563456

素因数分解:

$2^9\times {\mathrm{40163}}^1$

素因数の和:40181

約数の個数: 20

約数和(自身を含む): 41087772

約数和(自身を除く): 20524316

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 40163, 80326, 160652, 321304, 642608, 1285216, 2570432, 5140864, 10281728, 20563456]

約数ペア:

[(1, 20563456), (2, 10281728), (4, 5140864), (8, 2570432), (16, 1285216), (32, 642608), (64, 321304), (128, 160652), (256, 80326), (512, 40163)]