20821256

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{113159}}^1$

素因数の和:113188

約数の個数: 16

約数和(自身を含む): 40737600

約数和(自身を除く): 19916344

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 113159, 226318, 452636, 905272, 2602657, 5205314, 10410628, 20821256]

約数ペア:

[(1, 20821256), (2, 10410628), (4, 5205314), (8, 2602657), (23, 905272), (46, 452636), (92, 226318), (184, 113159)]