221536868

素因数分解:

$2^2\times 7^1\times {\mathrm{7912031}}^1$

素因数の和:7912042

約数の個数: 12

約数和(自身を含む): 443073792

約数和(自身を除く): 221536924

約数列:

[1, 2, 4, 7, 14, 28, 7912031, 15824062, 31648124, 55384217, 110768434, 221536868]

約数ペア:

[(1, 221536868), (2, 110768434), (4, 55384217), (7, 31648124), (14, 15824062), (28, 7912031)]