201718545

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{2161}}^1$

素因数の和:2310

約数の個数: 48

約数和(自身を含む): 378574848

約数和(自身を除く): 176856303

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 127, 147, 245, 381, 635, 735, 889, 1905, 2161, 2667, 4445, 6223, 6483, 10805, 13335, 15127, 18669, 31115, 32415, 45381, 75635, 93345, 105889, 226905, 274447, 317667, 529445, 823341, 1372235, 1588335, 1921129, 4116705, 5763387, 9605645, 13447903, 28816935, 40343709, 67239515, 201718545]

約数ペア:

[(1, 201718545), (3, 67239515), (5, 40343709), (7, 28816935), (15, 13447903), (21, 9605645), (35, 5763387), (49, 4116705), (105, 1921129), (127, 1588335), (147, 1372235), (245, 823341), (381, 529445), (635, 317667), (735, 274447), (889, 226905), (1905, 105889), (2161, 93345), (2667, 75635), (4445, 45381), (6223, 32415), (6483, 31115), (10805, 18669), (13335, 15127)]