19313889

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 31814208

約数和(自身を除く): 12500319

約数列:

[1, 3, 7, 21, 37, 49, 53, 67, 111, 147, 159, 201, 259, 371, 469, 777, 1113, 1407, 1813, 1961, 2479, 2597, 3283, 3551, 5439, 5883, 7437, 7791, 9849, 10653, 13727, 17353, 24857, 41181, 52059, 74571, 96089, 121471, 131387, 173999, 288267, 364413, 394161, 521997, 919709, 2759127, 6437963, 19313889]

約数ペア:

[(1, 19313889), (3, 6437963), (7, 2759127), (21, 919709), (37, 521997), (49, 394161), (53, 364413), (67, 288267), (111, 173999), (147, 131387), (159, 121471), (201, 96089), (259, 74571), (371, 52059), (469, 41181), (777, 24857), (1113, 17353), (1407, 13727), (1813, 10653), (1961, 9849), (2479, 7791), (2597, 7437), (3283, 5883), (3551, 5439)]