7001991

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 32

約数和(自身を含む): 10968320

約数和(自身を除く): 3966329

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 163, 333, 387, 489, 999, 1161, 1467, 1591, 4401, 4773, 6031, 7009, 14319, 18093, 21027, 42957, 54279, 63081, 162837, 189243, 259333, 777999, 2333997, 7001991]

約数ペア:

[(1, 7001991), (3, 2333997), (9, 777999), (27, 259333), (37, 189243), (43, 162837), (111, 63081), (129, 54279), (163, 42957), (333, 21027), (387, 18093), (489, 14319), (999, 7009), (1161, 6031), (1467, 4773), (1591, 4401)]