208048581

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:817

約数の個数: 56

約数和(自身を含む): 347967480

約数和(自身を除く): 139918899

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 243, 261, 351, 377, 729, 757, 783, 1053, 1131, 2271, 2349, 3159, 3393, 6813, 7047, 9477, 9841, 10179, 20439, 21141, 21953, 29523, 30537, 61317, 65859, 88569, 91611, 183951, 197577, 265707, 274833, 285389, 551853, 592731, 797121, 856167, 1778193, 2391363, 2568501, 5334579, 7174089, 7705503, 16003737, 23116509, 69349527, 208048581]

約数ペア:

[(1, 208048581), (3, 69349527), (9, 23116509), (13, 16003737), (27, 7705503), (29, 7174089), (39, 5334579), (81, 2568501), (87, 2391363), (117, 1778193), (243, 856167), (261, 797121), (351, 592731), (377, 551853), (729, 285389), (757, 274833), (783, 265707), (1053, 197577), (1131, 183951), (2271, 91611), (2349, 88569), (3159, 65859), (3393, 61317), (6813, 30537), (7047, 29523), (9477, 21953), (9841, 21141), (10179, 20439)]