20765556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4337}}^1$

素因数の和:4373

約数の個数: 72

約数和(自身を含む): 63161280

約数和(自身を除く): 42395724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 228, 252, 266, 342, 399, 532, 684, 798, 1197, 1596, 2394, 4337, 4788, 8674, 13011, 17348, 26022, 30359, 39033, 52044, 60718, 78066, 82403, 91077, 121436, 156132, 164806, 182154, 247209, 273231, 329612, 364308, 494418, 546462, 576821, 741627, 988836, 1092924, 1153642, 1483254, 1730463, 2307284, 2966508, 3460926, 5191389, 6921852, 10382778, 20765556]

約数ペア:

[(1, 20765556), (2, 10382778), (3, 6921852), (4, 5191389), (6, 3460926), (7, 2966508), (9, 2307284), (12, 1730463), (14, 1483254), (18, 1153642), (19, 1092924), (21, 988836), (28, 741627), (36, 576821), (38, 546462), (42, 494418), (57, 364308), (63, 329612), (76, 273231), (84, 247209), (114, 182154), (126, 164806), (133, 156132), (171, 121436), (228, 91077), (252, 82403), (266, 78066), (342, 60718), (399, 52044), (532, 39033), (684, 30359), (798, 26022), (1197, 17348), (1596, 13011), (2394, 8674), (4337, 4788)]