21789427

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1069}}^1$

素因数の和:1206

約数の個数: 16

約数和(自身を含む): 25423200

約数和(自身を除く): 3633773

約数列:

[1, 11, 17, 109, 187, 1069, 1199, 1853, 11759, 18173, 20383, 116521, 199903, 1281731, 1980857, 21789427]

約数ペア:

[(1, 21789427), (11, 1980857), (17, 1281731), (109, 199903), (187, 116521), (1069, 20383), (1199, 18173), (1853, 11759)]