20993606

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{4507}}^1$

素因数の和:4663

約数の個数: 16

約数和(自身を含む): 33593616

約数和(自身を除く): 12600010

約数列:

[1, 2, 17, 34, 137, 274, 2329, 4507, 4658, 9014, 76619, 153238, 617459, 1234918, 10496803, 20993606]

約数ペア:

[(1, 20993606), (2, 10496803), (17, 1234918), (34, 617459), (137, 153238), (274, 76619), (2329, 9014), (4507, 4658)]