21723559

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2081}}^1$

素因数の和:2178

約数の個数: 16

約数和(自身を含む): 25883424

約数和(自身を除く): 4159865

約数列:

[1, 11, 13, 73, 143, 803, 949, 2081, 10439, 22891, 27053, 151913, 297583, 1671043, 1974869, 21723559]

約数ペア:

[(1, 21723559), (11, 1974869), (13, 1671043), (73, 297583), (143, 151913), (803, 27053), (949, 22891), (2081, 10439)]