208577889

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 355891200

約数和(自身を除く): 147313311

約数列:

[1, 3, 9, 13, 27, 29, 31, 39, 87, 93, 117, 261, 279, 351, 377, 403, 661, 783, 837, 899, 1131, 1209, 1983, 2697, 3393, 3627, 5949, 8091, 8593, 10179, 10881, 11687, 17847, 19169, 20491, 24273, 25779, 35061, 57507, 61473, 77337, 105183, 172521, 184419, 232011, 249197, 266383, 315549, 517563, 553257, 594239, 747591, 799149, 1782717, 2242773, 2397447, 5348151, 6728319, 7192341, 7725107, 16044453, 23175321, 69525963, 208577889]

約数ペア:

[(1, 208577889), (3, 69525963), (9, 23175321), (13, 16044453), (27, 7725107), (29, 7192341), (31, 6728319), (39, 5348151), (87, 2397447), (93, 2242773), (117, 1782717), (261, 799149), (279, 747591), (351, 594239), (377, 553257), (403, 517563), (661, 315549), (783, 266383), (837, 249197), (899, 232011), (1131, 184419), (1209, 172521), (1983, 105183), (2697, 77337), (3393, 61473), (3627, 57507), (5949, 35061), (8091, 25779), (8593, 24273), (10179, 20491), (10881, 19169), (11687, 17847)]