18899903

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{479}}^1$

素因数の和:718

約数の個数: 16

約数和(自身を含む): 21980160

約数和(自身を除く): 3080257

約数列:

[1, 11, 17, 187, 211, 479, 2321, 3587, 5269, 8143, 39457, 89573, 101069, 1111759, 1718173, 18899903]

約数ペア:

[(1, 18899903), (11, 1718173), (17, 1111759), (187, 101069), (211, 89573), (479, 39457), (2321, 8143), (3587, 5269)]