128871

素因数分解:

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

素因数の和:92

約数の個数: 20

約数和(自身を含む): 202312

約数和(自身を除く): 73441

約数列:

[1, 3, 9, 27, 37, 43, 81, 111, 129, 333, 387, 999, 1161, 1591, 2997, 3483, 4773, 14319, 42957, 128871]

約数ペア:

[(1, 128871), (3, 42957), (9, 14319), (27, 4773), (37, 3483), (43, 2997), (81, 1591), (111, 1161), (129, 999), (333, 387)]