28512407

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19489}}^1$

素因数の和:19526

約数の個数: 16

約数和(自身を含む): 37420800

約数和(自身を除く): 8908393

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19489, 136423, 214379, 370291, 1500653, 2592037, 4073201, 28512407]

約数ペア:

[(1, 28512407), (7, 4073201), (11, 2592037), (19, 1500653), (77, 370291), (133, 214379), (209, 136423), (1463, 19489)]