78867891

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{67931}}^1$

素因数の和:67983

約数の個数: 16

約数和(自身を含む): 119560320

約数和(自身を除く): 40692429

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 67931, 203793, 611379, 1834137, 2921033, 8763099, 26289297, 78867891]

約数ペア:

[(1, 78867891), (3, 26289297), (9, 8763099), (27, 2921033), (43, 1834137), (129, 611379), (387, 203793), (1161, 67931)]