205910789

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:694

約数の個数: 32

約数和(自身を含む): 256819200

約数和(自身を除く): 50908411

約数列:

[1, 7, 23, 43, 49, 161, 301, 343, 607, 989, 1127, 2107, 4249, 6923, 7889, 13961, 14749, 26101, 29743, 48461, 97727, 182707, 208201, 339227, 600323, 684089, 1278949, 4202261, 4788623, 8952643, 29415827, 205910789]

約数ペア:

[(1, 205910789), (7, 29415827), (23, 8952643), (43, 4788623), (49, 4202261), (161, 1278949), (301, 684089), (343, 600323), (607, 339227), (989, 208201), (1127, 182707), (2107, 97727), (4249, 48461), (6923, 29743), (7889, 26101), (13961, 14749)]