13378689

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{499}}^1$

素因数の和:842

約数の個数: 20

約数和(自身を含む): 20086000

約数和(自身を除く): 6707311

約数列:

[1, 3, 9, 27, 81, 331, 499, 993, 1497, 2979, 4491, 8937, 13473, 26811, 40419, 165169, 495507, 1486521, 4459563, 13378689]

約数ペア:

[(1, 13378689), (3, 4459563), (9, 1486521), (27, 495507), (81, 165169), (331, 40419), (499, 26811), (993, 13473), (1497, 8937), (2979, 4491)]