21017491

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1583}}^1$

素因数の和:1682

約数の個数: 16

約数和(自身を含む): 24634368

約数和(自身を除く): 3616877

約数列:

[1, 11, 17, 71, 187, 781, 1207, 1583, 13277, 17413, 26911, 112393, 296021, 1236323, 1910681, 21017491]

約数ペア:

[(1, 21017491), (11, 1910681), (17, 1236323), (71, 296021), (187, 112393), (781, 26911), (1207, 17413), (1583, 13277)]