28867707

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 48672000

約数和(自身を除く): 19804293

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 103, 149, 171, 209, 309, 447, 627, 927, 1133, 1341, 1639, 1881, 1957, 2831, 3399, 4917, 5871, 8493, 10197, 14751, 15347, 17613, 21527, 25479, 31141, 46041, 64581, 93423, 138123, 168817, 193743, 280269, 291593, 506451, 874779, 1519353, 2624337, 3207523, 9622569, 28867707]

約数ペア:

[(1, 28867707), (3, 9622569), (9, 3207523), (11, 2624337), (19, 1519353), (33, 874779), (57, 506451), (99, 291593), (103, 280269), (149, 193743), (171, 168817), (209, 138123), (309, 93423), (447, 64581), (627, 46041), (927, 31141), (1133, 25479), (1341, 21527), (1639, 17613), (1881, 15347), (1957, 14751), (2831, 10197), (3399, 8493), (4917, 5871)]