19968727

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:582

約数の個数: 16

約数和(自身を含む): 22049280

約数和(自身を除く): 2080553

約数列:

[1, 17, 43, 59, 463, 731, 1003, 2537, 7871, 19909, 27317, 43129, 338453, 464389, 1174631, 19968727]

約数ペア:

[(1, 19968727), (17, 1174631), (43, 464389), (59, 338453), (463, 43129), (731, 27317), (1003, 19909), (2537, 7871)]