21181303

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8713}}^1$

素因数の和:8754

約数の個数: 16

約数和(自身を含む): 26351136

約数和(自身を除く): 5169833

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8713, 95843, 113269, 148121, 1245959, 1629331, 1925573, 21181303]

約数ペア:

[(1, 21181303), (11, 1925573), (13, 1629331), (17, 1245959), (143, 148121), (187, 113269), (221, 95843), (2431, 8713)]