18121453

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 22331904

約数和(自身を除く): 4210451

約数列:

[1, 7, 31, 37, 61, 217, 259, 427, 1147, 1369, 1891, 2257, 8029, 9583, 13237, 15799, 42439, 69967, 83509, 297073, 489769, 584563, 2588779, 18121453]

約数ペア:

[(1, 18121453), (7, 2588779), (31, 584563), (37, 489769), (61, 297073), (217, 83509), (259, 69967), (427, 42439), (1147, 15799), (1369, 13237), (1891, 9583), (2257, 8029)]