12890721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1627}}^1$

素因数の和:1788

約数の個数: 16

約数和(自身を含む): 18233600

約数和(自身を除く): 5342879

約数列:

[1, 3, 19, 57, 139, 417, 1627, 2641, 4881, 7923, 30913, 92739, 226153, 678459, 4296907, 12890721]

約数ペア:

[(1, 12890721), (3, 4296907), (19, 678459), (57, 226153), (139, 92739), (417, 30913), (1627, 7923), (2641, 4881)]