18697217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5647}}^1$

素因数の和:5708

約数の個数: 16

約数和(自身を含む): 23857152

約数和(自身を除く): 5159935

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 5647, 39529, 62117, 242821, 434819, 1699747, 2671031, 18697217]

約数ペア:

[(1, 18697217), (7, 2671031), (11, 1699747), (43, 434819), (77, 242821), (301, 62117), (473, 39529), (3311, 5647)]