21084416

素因数分解:

$2^8\times {\mathrm{82361}}^1$

素因数の和:82377

約数の個数: 18

約数和(自身を含む): 42086982

約数和(自身を除く): 21002566

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 82361, 164722, 329444, 658888, 1317776, 2635552, 5271104, 10542208, 21084416]

約数ペア:

[(1, 21084416), (2, 10542208), (4, 5271104), (8, 2635552), (16, 1317776), (32, 658888), (64, 329444), (128, 164722), (256, 82361)]