27817881

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 49889280

約数和(自身を除く): 22071399

約数列:

[1, 3, 7, 13, 19, 21, 31, 39, 57, 91, 93, 133, 173, 217, 247, 273, 399, 403, 519, 589, 651, 741, 1209, 1211, 1729, 1767, 2249, 2821, 3287, 3633, 4123, 5187, 5363, 6747, 7657, 8463, 9861, 12369, 15743, 16089, 22971, 23009, 37541, 42731, 47229, 53599, 69027, 69719, 101897, 112623, 128193, 160797, 209157, 299117, 305691, 488033, 713279, 897351, 1324661, 1464099, 2139837, 3973983, 9272627, 27817881]

約数ペア:

[(1, 27817881), (3, 9272627), (7, 3973983), (13, 2139837), (19, 1464099), (21, 1324661), (31, 897351), (39, 713279), (57, 488033), (91, 305691), (93, 299117), (133, 209157), (173, 160797), (217, 128193), (247, 112623), (273, 101897), (399, 69719), (403, 69027), (519, 53599), (589, 47229), (651, 42731), (741, 37541), (1209, 23009), (1211, 22971), (1729, 16089), (1767, 15743), (2249, 12369), (2821, 9861), (3287, 8463), (3633, 7657), (4123, 6747), (5187, 5363)]