21523456

素因数分解:

$2^{10}\times {\mathrm{21019}}^1$

素因数の和:21039

約数の個数: 22

約数和(自身を含む): 43027940

約数和(自身を除く): 21504484

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 21019, 42038, 84076, 168152, 336304, 672608, 1345216, 2690432, 5380864, 10761728, 21523456]

約数ペア:

[(1, 21523456), (2, 10761728), (4, 5380864), (8, 2690432), (16, 1345216), (32, 672608), (64, 336304), (128, 168152), (256, 84076), (512, 42038), (1024, 21019)]