21090676

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1153}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 39259080

約数和(自身を除く): 18168404

約数列:

[1, 2, 4, 17, 34, 68, 269, 538, 1076, 1153, 2306, 4573, 4612, 9146, 18292, 19601, 39202, 78404, 310157, 620314, 1240628, 5272669, 10545338, 21090676]

約数ペア:

[(1, 21090676), (2, 10545338), (4, 5272669), (17, 1240628), (34, 620314), (68, 310157), (269, 78404), (538, 39202), (1076, 19601), (1153, 18292), (2306, 9146), (4573, 4612)]