21247732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1879}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 40743360

約数和(自身を除く): 19495628

約数列:

[1, 2, 4, 11, 22, 44, 257, 514, 1028, 1879, 2827, 3758, 5654, 7516, 11308, 20669, 41338, 82676, 482903, 965806, 1931612, 5311933, 10623866, 21247732]

約数ペア:

[(1, 21247732), (2, 10623866), (4, 5311933), (11, 1931612), (22, 965806), (44, 482903), (257, 82676), (514, 41338), (1028, 20669), (1879, 11308), (2827, 7516), (3758, 5654)]