205806987

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1597}}^1$

素因数の和:1689

約数の個数: 40

約数和(自身を含む): 323294576

約数和(自身を除く): 117487589

約数列:

[1, 3, 9, 27, 37, 43, 81, 111, 129, 333, 387, 999, 1161, 1591, 1597, 2997, 3483, 4773, 4791, 14319, 14373, 42957, 43119, 59089, 68671, 128871, 129357, 177267, 206013, 531801, 618039, 1595403, 1854117, 2540827, 4786209, 5562351, 7622481, 22867443, 68602329, 205806987]

約数ペア:

[(1, 205806987), (3, 68602329), (9, 22867443), (27, 7622481), (37, 5562351), (43, 4786209), (81, 2540827), (111, 1854117), (129, 1595403), (333, 618039), (387, 531801), (999, 206013), (1161, 177267), (1591, 129357), (1597, 128871), (2997, 68671), (3483, 59089), (4773, 43119), (4791, 42957), (14319, 14373)]