18386757

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5279}}^1$

素因数の和:5334

約数の個数: 20

約数和(自身を含む): 28110720

約数和(自身を除く): 9723963

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5279, 15837, 47511, 142533, 226997, 427599, 680991, 2042973, 6128919, 18386757]

約数ペア:

[(1, 18386757), (3, 6128919), (9, 2042973), (27, 680991), (43, 427599), (81, 226997), (129, 142533), (387, 47511), (1161, 15837), (3483, 5279)]