128394477

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{42841}}^1$

素因数の和:42890

約数の個数: 20

約数和(自身を含む): 196987516

約数和(自身を除く): 68593039

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 42841, 128523, 385569, 1156707, 1585117, 3470121, 4755351, 14266053, 42798159, 128394477]

約数ペア:

[(1, 128394477), (3, 42798159), (9, 14266053), (27, 4755351), (37, 3470121), (81, 1585117), (111, 1156707), (333, 385569), (999, 128523), (2997, 42841)]