16640547

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 12317277

約数列:

[1, 3, 7, 11, 21, 33, 41, 49, 77, 123, 147, 231, 251, 287, 451, 539, 753, 861, 1353, 1617, 1757, 2009, 2761, 3157, 5271, 6027, 8283, 9471, 10291, 12299, 19327, 22099, 30873, 36897, 57981, 66297, 72037, 113201, 135289, 216111, 339603, 405867, 504259, 792407, 1512777, 2377221, 5546849, 16640547]

約数ペア:

[(1, 16640547), (3, 5546849), (7, 2377221), (11, 1512777), (21, 792407), (33, 504259), (41, 405867), (49, 339603), (77, 216111), (123, 135289), (147, 113201), (231, 72037), (251, 66297), (287, 57981), (451, 36897), (539, 30873), (753, 22099), (861, 19327), (1353, 12299), (1617, 10291), (1757, 9471), (2009, 8283), (2761, 6027), (3157, 5271)]