21081784

素因数分解:

$2^3\times {\mathrm{1093}}^1\times {\mathrm{2411}}^1$

素因数の和:3510

約数の個数: 16

約数和(自身を含む): 39580920

約数和(自身を除く): 18499136

約数列:

[1, 2, 4, 8, 1093, 2186, 2411, 4372, 4822, 8744, 9644, 19288, 2635223, 5270446, 10540892, 21081784]

約数ペア:

[(1, 21081784), (2, 10540892), (4, 5270446), (8, 2635223), (1093, 19288), (2186, 9644), (2411, 8744), (4372, 4822)]