208525821

素因数分解:

$3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{5477}}^1$

素因数の和:5538

約数の個数: 32

約数和(自身を含む): 333062400

約数和(自身を除く): 124536579

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 343, 777, 1029, 1813, 5439, 5477, 12691, 16431, 38073, 38339, 115017, 202649, 268373, 607947, 805119, 1418543, 1878611, 4255629, 5635833, 9929801, 29789403, 69508607, 208525821]

約数ペア:

[(1, 208525821), (3, 69508607), (7, 29789403), (21, 9929801), (37, 5635833), (49, 4255629), (111, 1878611), (147, 1418543), (259, 805119), (343, 607947), (777, 268373), (1029, 202649), (1813, 115017), (5439, 38339), (5477, 38073), (12691, 16431)]