21528386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1993}}^1$

素因数の和:2497

約数の個数: 16

約数和(自身を含む): 35317728

約数和(自身を除く): 13789342

約数列:

[1, 2, 11, 22, 491, 982, 1993, 3986, 5401, 10802, 21923, 43846, 978563, 1957126, 10764193, 21528386]

約数ペア:

[(1, 21528386), (2, 10764193), (11, 1957126), (22, 978563), (491, 43846), (982, 21923), (1993, 10802), (3986, 5401)]