20145009

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{863}}^1$

素因数の和:1148

約数の個数: 16

約数和(自身を含む): 27869184

約数和(自身を除く): 7724175

約数列:

[1, 3, 31, 93, 251, 753, 863, 2589, 7781, 23343, 26753, 80259, 216613, 649839, 6715003, 20145009]

約数ペア:

[(1, 20145009), (3, 6715003), (31, 649839), (93, 216613), (251, 80259), (753, 26753), (863, 23343), (2589, 7781)]