209440924

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{680003}}^1$

素因数の和:680025

約数の個数: 24

約数和(自身を含む): 456962688

約数和(自身を除く): 247521764

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 680003, 1360006, 2720012, 4760021, 7480033, 9520042, 14960066, 19040084, 29920132, 52360231, 104720462, 209440924]

約数ペア:

[(1, 209440924), (2, 104720462), (4, 52360231), (7, 29920132), (11, 19040084), (14, 14960066), (22, 9520042), (28, 7480033), (44, 4760021), (77, 2720012), (154, 1360006), (308, 680003)]