21338273

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{193}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 25747680

約数和(自身を除く): 4409407

約数列:

[1, 11, 19, 23, 193, 209, 253, 437, 529, 2123, 3667, 4439, 4807, 5819, 10051, 40337, 48829, 84341, 102097, 110561, 927751, 1123067, 1939843, 21338273]

約数ペア:

[(1, 21338273), (11, 1939843), (19, 1123067), (23, 927751), (193, 110561), (209, 102097), (253, 84341), (437, 48829), (529, 40337), (2123, 10051), (3667, 5819), (4439, 4807)]