28770511

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 39260160

約数和(自身を除く): 10489649

約数列:

[1, 7, 11, 17, 31, 77, 119, 187, 217, 341, 527, 709, 1309, 2387, 3689, 4963, 5797, 7799, 12053, 21979, 40579, 54593, 84371, 132583, 153853, 241769, 373643, 928081, 1692383, 2615501, 4110073, 28770511]

約数ペア:

[(1, 28770511), (7, 4110073), (11, 2615501), (17, 1692383), (31, 928081), (77, 373643), (119, 241769), (187, 153853), (217, 132583), (341, 84371), (527, 54593), (709, 40579), (1309, 21979), (2387, 12053), (3689, 7799), (4963, 5797)]