20801536

素因数分解:

$2^{11}\times 7^1\times {\mathrm{1451}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 47567520

約数和(自身を除く): 26765984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1451, 1792, 2048, 2902, 3584, 5804, 7168, 10157, 11608, 14336, 20314, 23216, 40628, 46432, 81256, 92864, 162512, 185728, 325024, 371456, 650048, 742912, 1300096, 1485824, 2600192, 2971648, 5200384, 10400768, 20801536]

約数ペア:

[(1, 20801536), (2, 10400768), (4, 5200384), (7, 2971648), (8, 2600192), (14, 1485824), (16, 1300096), (28, 742912), (32, 650048), (56, 371456), (64, 325024), (112, 185728), (128, 162512), (224, 92864), (256, 81256), (448, 46432), (512, 40628), (896, 23216), (1024, 20314), (1451, 14336), (1792, 11608), (2048, 10157), (2902, 7168), (3584, 5804)]