398444794

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{421189}}^1$

素因数の和:421245

約数の個数: 16

約数和(自身を含む): 667164960

約数和(自身を除く): 268720166

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 421189, 842378, 4633079, 9266158, 18111127, 36222254, 199222397, 398444794]

約数ペア:

[(1, 398444794), (2, 199222397), (11, 36222254), (22, 18111127), (43, 9266158), (86, 4633079), (473, 842378), (946, 421189)]