28707679

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 41713056

約数和(自身を除く): 13005377

約数列:

[1, 7, 11, 13, 17, 49, 77, 91, 119, 143, 187, 221, 241, 539, 637, 833, 1001, 1309, 1547, 1687, 2431, 2651, 3133, 4097, 7007, 9163, 10829, 11809, 17017, 18557, 21931, 28679, 34463, 45067, 53261, 119119, 129899, 153517, 200753, 241241, 315469, 372827, 585871, 1688687, 2208283, 2609789, 4101097, 28707679]

約数ペア:

[(1, 28707679), (7, 4101097), (11, 2609789), (13, 2208283), (17, 1688687), (49, 585871), (77, 372827), (91, 315469), (119, 241241), (143, 200753), (187, 153517), (221, 129899), (241, 119119), (539, 53261), (637, 45067), (833, 34463), (1001, 28679), (1309, 21931), (1547, 18557), (1687, 17017), (2431, 11809), (2651, 10829), (3133, 9163), (4097, 7007)]