20077309

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 24624000

約数和(自身を除く): 4546691

約数列:

[1, 7, 29, 49, 71, 199, 203, 497, 1393, 1421, 2059, 3479, 5771, 9751, 14129, 14413, 40397, 98903, 100891, 282779, 409741, 692321, 2868187, 20077309]

約数ペア:

[(1, 20077309), (7, 2868187), (29, 692321), (49, 409741), (71, 282779), (199, 100891), (203, 98903), (497, 40397), (1393, 14413), (1421, 14129), (2059, 9751), (3479, 5771)]