21317248

素因数分解:

$2^7\times {\mathrm{166541}}^1$

素因数の和:166555

約数の個数: 16

約数和(自身を含む): 42468210

約数和(自身を除く): 21150962

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 166541, 333082, 666164, 1332328, 2664656, 5329312, 10658624, 21317248]

約数ペア:

[(1, 21317248), (2, 10658624), (4, 5329312), (8, 2664656), (16, 1332328), (32, 666164), (64, 333082), (128, 166541)]