488389743

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{140221}}^1$

素因数の和:140276

約数の個数: 20

約数和(自身を含む): 746541928

約数和(自身を除く): 258152185

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 140221, 420663, 1261989, 3785967, 6029503, 11357901, 18088509, 54265527, 162796581, 488389743]

約数ペア:

[(1, 488389743), (3, 162796581), (9, 54265527), (27, 18088509), (43, 11357901), (81, 6029503), (129, 3785967), (387, 1261989), (1161, 420663), (3483, 140221)]