21090544

素因数分解:

$2^4\times {\mathrm{631}}^1\times {\mathrm{2089}}^1$

素因数の和:2728

約数の個数: 20

約数和(自身を含む): 40947280

約数和(自身を除く): 19856736

約数列:

[1, 2, 4, 8, 16, 631, 1262, 2089, 2524, 4178, 5048, 8356, 10096, 16712, 33424, 1318159, 2636318, 5272636, 10545272, 21090544]

約数ペア:

[(1, 21090544), (2, 10545272), (4, 5272636), (8, 2636318), (16, 1318159), (631, 33424), (1262, 16712), (2089, 10096), (2524, 8356), (4178, 5048)]