20015987

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2066

約数の個数: 16

約数和(自身を含む): 23040000

約数和(自身を除く): 3024013

約数列:

[1, 17, 19, 31, 323, 527, 589, 1999, 10013, 33983, 37981, 61969, 645677, 1053473, 1177411, 20015987]

約数ペア:

[(1, 20015987), (17, 1177411), (19, 1053473), (31, 645677), (323, 61969), (527, 37981), (589, 33983), (1999, 10013)]