21398277791

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{383}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 25273285632

約数和(自身を除く): 3875007841

約数列:

[1, 11, 17, 121, 157, 173, 187, 383, 1727, 1903, 2057, 2669, 2941, 4213, 6511, 18997, 20933, 27161, 29359, 32351, 46343, 60131, 66259, 71621, 298771, 322949, 355861, 461737, 661441, 728849, 787831, 1022227, 1126403, 3286481, 5079107, 7275851, 8017339, 10402663, 11244497, 12390433, 55870177, 114429293, 123689467, 136294763, 176845271, 1258722223, 1945297981, 21398277791]

約数ペア:

[(1, 21398277791), (11, 1945297981), (17, 1258722223), (121, 176845271), (157, 136294763), (173, 123689467), (187, 114429293), (383, 55870177), (1727, 12390433), (1903, 11244497), (2057, 10402663), (2669, 8017339), (2941, 7275851), (4213, 5079107), (6511, 3286481), (18997, 1126403), (20933, 1022227), (27161, 787831), (29359, 728849), (32351, 661441), (46343, 461737), (60131, 355861), (66259, 322949), (71621, 298771)]