20145171

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{1039}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 28154880

約数和(自身を除く): 8009709

約数列:

[1, 3, 23, 69, 281, 843, 1039, 3117, 6463, 19389, 23897, 71691, 291959, 875877, 6715057, 20145171]

約数ペア:

[(1, 20145171), (3, 6715057), (23, 875877), (69, 291959), (281, 71691), (843, 23897), (1039, 19389), (3117, 6463)]