21382277

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:250

約数の個数: 32

約数和(自身を含む): 27936000

約数和(自身を除く): 6553723

約数列:

[1, 7, 17, 19, 49, 119, 133, 193, 323, 343, 833, 931, 1351, 2261, 3281, 3667, 5831, 6517, 9457, 15827, 22967, 25669, 62339, 66199, 110789, 160769, 179683, 436373, 1125383, 1257781, 3054611, 21382277]

約数ペア:

[(1, 21382277), (7, 3054611), (17, 1257781), (19, 1125383), (49, 436373), (119, 179683), (133, 160769), (193, 110789), (323, 66199), (343, 62339), (833, 25669), (931, 22967), (1351, 15827), (2261, 9457), (3281, 6517), (3667, 5831)]