208520217

素因数分解:

$3^3\times {\mathrm{1709}}^1\times {\mathrm{4519}}^1$

素因数の和:6237

約数の個数: 16

約数和(自身を含む): 309168000

約数和(自身を除く): 100647783

約数列:

[1, 3, 9, 27, 1709, 4519, 5127, 13557, 15381, 40671, 46143, 122013, 7722971, 23168913, 69506739, 208520217]

約数ペア:

[(1, 208520217), (3, 69506739), (9, 23168913), (27, 7722971), (1709, 122013), (4519, 46143), (5127, 40671), (13557, 15381)]