27801081

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{521}}^1$

素因数の和:563

約数の個数: 54

約数和(自身を含む): 51444666

約数和(自身を除く): 23643585

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 121, 147, 231, 363, 441, 521, 539, 693, 847, 1089, 1563, 1617, 2541, 3647, 4689, 4851, 5731, 5929, 7623, 10941, 17193, 17787, 25529, 32823, 40117, 51579, 53361, 63041, 76587, 120351, 189123, 229761, 280819, 361053, 441287, 567369, 842457, 1323861, 2527371, 3089009, 3971583, 9267027, 27801081]

約数ペア:

[(1, 27801081), (3, 9267027), (7, 3971583), (9, 3089009), (11, 2527371), (21, 1323861), (33, 842457), (49, 567369), (63, 441287), (77, 361053), (99, 280819), (121, 229761), (147, 189123), (231, 120351), (363, 76587), (441, 63041), (521, 53361), (539, 51579), (693, 40117), (847, 32823), (1089, 25529), (1563, 17787), (1617, 17193), (2541, 10941), (3647, 7623), (4689, 5929), (4851, 5731)]