21368373

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7717}}^1$

素因数の和:7804

約数の個数: 16

約数和(自身を含む): 31118976

約数和(自身を除く): 9750603

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7717, 23151, 100321, 300963, 547907, 1643721, 7122791, 21368373]

約数ペア:

[(1, 21368373), (3, 7122791), (13, 1643721), (39, 547907), (71, 300963), (213, 100321), (923, 23151), (2769, 7717)]