18637157

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12739}}^1$

素因数の和:12776

約数の個数: 16

約数和(自身を含む): 24460800

約数和(自身を除く): 5823643

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 12739, 89173, 140129, 242041, 980903, 1694287, 2662451, 18637157]

約数ペア:

[(1, 18637157), (7, 2662451), (11, 1694287), (19, 980903), (77, 242041), (133, 140129), (209, 89173), (1463, 12739)]