18890287

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{719}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 21288960

約数和(自身を除く): 2398673

約数列:

[1, 13, 43, 47, 559, 611, 719, 2021, 9347, 26273, 30917, 33793, 401921, 439309, 1453099, 18890287]

約数ペア:

[(1, 18890287), (13, 1453099), (43, 439309), (47, 401921), (559, 33793), (611, 30917), (719, 26273), (2021, 9347)]