1520220247

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{340933}}^1$

素因数の和:340967

約数の個数: 16

約数和(自身を含む): 1909230400

約数和(自身を除く): 389010153

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 340933, 2386531, 4432129, 16705717, 31024903, 116940019, 217174321, 1520220247]

約数ペア:

[(1, 1520220247), (7, 217174321), (13, 116940019), (49, 31024903), (91, 16705717), (343, 4432129), (637, 2386531), (4459, 340933)]