21425833

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 25941384

約数和(自身を除く): 4515551

約数列:

[1, 11, 13, 53, 121, 143, 257, 583, 689, 1573, 2827, 3341, 6413, 7579, 13621, 31097, 36751, 83369, 149831, 177073, 404261, 1648141, 1947803, 21425833]

約数ペア:

[(1, 21425833), (11, 1947803), (13, 1648141), (53, 404261), (121, 177073), (143, 149831), (257, 83369), (583, 36751), (689, 31097), (1573, 13621), (2827, 7579), (3341, 6413)]