20861709

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{3209}}^1$

素因数の和:3420

約数の個数: 16

約数和(自身を含む): 30507840

約数和(自身を除く): 9646131

約数列:

[1, 3, 11, 33, 197, 591, 2167, 3209, 6501, 9627, 35299, 105897, 632173, 1896519, 6953903, 20861709]

約数ペア:

[(1, 20861709), (3, 6953903), (11, 1896519), (33, 632173), (197, 105897), (591, 35299), (2167, 9627), (3209, 6501)]