15707979

素因数分解:

$3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:437

約数の個数: 48

約数和(自身を含む): 28016640

約数和(自身を除く): 12308661

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 93, 147, 189, 217, 279, 383, 441, 651, 837, 1149, 1323, 1519, 1953, 2681, 3447, 4557, 5859, 8043, 10341, 11873, 13671, 18767, 24129, 35619, 41013, 56301, 72387, 83111, 106857, 168903, 249333, 320571, 506709, 581777, 747999, 1745331, 2243997, 5235993, 15707979]

約数ペア:

[(1, 15707979), (3, 5235993), (7, 2243997), (9, 1745331), (21, 747999), (27, 581777), (31, 506709), (49, 320571), (63, 249333), (93, 168903), (147, 106857), (189, 83111), (217, 72387), (279, 56301), (383, 41013), (441, 35619), (651, 24129), (837, 18767), (1149, 13671), (1323, 11873), (1519, 10341), (1953, 8043), (2681, 5859), (3447, 4557)]