1665261

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 2658656

約数和(自身を除く): 993395

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 331, 387, 559, 993, 1677, 2979, 4303, 5031, 12909, 14233, 38727, 42699, 128097, 185029, 555087, 1665261]

約数ペア:

[(1, 1665261), (3, 555087), (9, 185029), (13, 128097), (39, 42699), (43, 38727), (117, 14233), (129, 12909), (331, 5031), (387, 4303), (559, 2979), (993, 1677)]