21510717

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{1579}}^1$

素因数の和:1840

約数の個数: 16

約数和(自身を含む): 30336000

約数和(自身を除く): 8825283

約数列:

[1, 3, 19, 57, 239, 717, 1579, 4541, 4737, 13623, 30001, 90003, 377381, 1132143, 7170239, 21510717]

約数ペア:

[(1, 21510717), (3, 7170239), (19, 1132143), (57, 377381), (239, 90003), (717, 30001), (1579, 13623), (4541, 4737)]