78902721

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{67961}}^1$

素因数の和:68013

約数の個数: 16

約数和(自身を含む): 119613120

約数和(自身を除く): 40710399

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 67961, 203883, 611649, 1834947, 2922323, 8766969, 26300907, 78902721]

約数ペア:

[(1, 78902721), (3, 26300907), (9, 8766969), (27, 2922323), (43, 1834947), (129, 611649), (387, 203883), (1161, 67961)]