21109053

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8447}}^1$

素因数の和:8481

約数の個数: 24

約数和(自身を含む): 34670592

約数和(自身を除く): 13561539

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8447, 25341, 59129, 143599, 177387, 413903, 430797, 1005193, 1241709, 3015579, 7036351, 21109053]

約数ペア:

[(1, 21109053), (3, 7036351), (7, 3015579), (17, 1241709), (21, 1005193), (49, 430797), (51, 413903), (119, 177387), (147, 143599), (357, 59129), (833, 25341), (2499, 8447)]