127721209

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53507}}^1$

素因数の和:53556

約数の個数: 16

約数和(自身を含む): 164376576

約数和(自身を除く): 36655367

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 53507, 374549, 588577, 1658717, 4120039, 11611019, 18245887, 127721209]

約数ペア:

[(1, 127721209), (7, 18245887), (11, 11611019), (31, 4120039), (77, 1658717), (217, 588577), (341, 374549), (2387, 53507)]