21719451

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29311}}^1$

素因数の和:29346

約数の個数: 16

約数和(自身を含む): 32829440

約数和(自身を除く): 11109989

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 29311, 87933, 381043, 556909, 1143129, 1670727, 7239817, 21719451]

約数ペア:

[(1, 21719451), (3, 7239817), (13, 1670727), (19, 1143129), (39, 556909), (57, 381043), (247, 87933), (741, 29311)]