21521408

素因数分解:

$2^{10}\times {\mathrm{21017}}^1$

素因数の和:21037

約数の個数: 22

約数和(自身を含む): 43023846

約数和(自身を除く): 21502438

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 21017, 42034, 84068, 168136, 336272, 672544, 1345088, 2690176, 5380352, 10760704, 21521408]

約数ペア:

[(1, 21521408), (2, 10760704), (4, 5380352), (8, 2690176), (16, 1345088), (32, 672544), (64, 336272), (128, 168136), (256, 84068), (512, 42034), (1024, 21017)]