21140306

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{3739}}^1$

素因数の和:4009

約数の個数: 16

約数和(自身を含む): 34737120

約数和(自身を除く): 13596814

約数列:

[1, 2, 11, 22, 257, 514, 2827, 3739, 5654, 7478, 41129, 82258, 960923, 1921846, 10570153, 21140306]

約数ペア:

[(1, 21140306), (2, 10570153), (11, 1921846), (22, 960923), (257, 82258), (514, 41129), (2827, 7478), (3739, 5654)]