18704871

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{16111}}^1$

素因数の和:16163

約数の個数: 16

約数和(自身を含む): 28357120

約数和(自身を除く): 9652249

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 16111, 48333, 144999, 434997, 692773, 2078319, 6234957, 18704871]

約数ペア:

[(1, 18704871), (3, 6234957), (9, 2078319), (27, 692773), (43, 434997), (129, 144999), (387, 48333), (1161, 16111)]