28338219

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4943}}^1$

素因数の和:4976

約数の個数: 36

約数和(自身を含む): 51289056

約数和(自身を除く): 22950837

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 4943, 5733, 14829, 34601, 44487, 64259, 103803, 192777, 242207, 311409, 449813, 578331, 726621, 1349439, 2179863, 3148691, 4048317, 9446073, 28338219]

約数ペア:

[(1, 28338219), (3, 9446073), (7, 4048317), (9, 3148691), (13, 2179863), (21, 1349439), (39, 726621), (49, 578331), (63, 449813), (91, 311409), (117, 242207), (147, 192777), (273, 103803), (441, 64259), (637, 44487), (819, 34601), (1911, 14829), (4943, 5733)]