19681745

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2953}}^1$

素因数の和:3032

約数の個数: 16

約数和(自身を含む): 24955392

約数和(自身を除く): 5273647

約数列:

[1, 5, 31, 43, 155, 215, 1333, 2953, 6665, 14765, 91543, 126979, 457715, 634895, 3936349, 19681745]

約数ペア:

[(1, 19681745), (5, 3936349), (31, 634895), (43, 457715), (155, 126979), (215, 91543), (1333, 14765), (2953, 6665)]