206917809

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{2687}}^1$

素因数の和:2909

約数の個数: 32

約数和(自身を含む): 333742080

約数和(自身を除く): 126824271

約数列:

[1, 3, 7, 19, 21, 57, 133, 193, 399, 579, 1351, 2687, 3667, 4053, 8061, 11001, 18809, 25669, 51053, 56427, 77007, 153159, 357371, 518591, 1072113, 1555773, 3630137, 9853229, 10890411, 29559687, 68972603, 206917809]

約数ペア:

[(1, 206917809), (3, 68972603), (7, 29559687), (19, 10890411), (21, 9853229), (57, 3630137), (133, 1555773), (193, 1072113), (399, 518591), (579, 357371), (1351, 153159), (2687, 77007), (3667, 56427), (4053, 51053), (8061, 25669), (11001, 18809)]