321330261

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{805339}}^1$

素因数の和:805368

約数の個数: 16

約数和(自身を含む): 515417600

約数和(自身を除く): 194087339

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 805339, 2416017, 5637373, 15301441, 16912119, 45904323, 107110087, 321330261]

約数ペア:

[(1, 321330261), (3, 107110087), (7, 45904323), (19, 16912119), (21, 15301441), (57, 5637373), (133, 2416017), (399, 805339)]