28381353

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{727}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 51158016

約数和(自身を除く): 22776663

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 169, 231, 273, 429, 507, 727, 1001, 1183, 1859, 2181, 3003, 3549, 5089, 5577, 7997, 9451, 13013, 15267, 23991, 28353, 39039, 55979, 66157, 103961, 122863, 167937, 198471, 311883, 368589, 727727, 860041, 1351493, 2183181, 2580123, 4054479, 9460451, 28381353]

約数ペア:

[(1, 28381353), (3, 9460451), (7, 4054479), (11, 2580123), (13, 2183181), (21, 1351493), (33, 860041), (39, 727727), (77, 368589), (91, 311883), (143, 198471), (169, 167937), (231, 122863), (273, 103961), (429, 66157), (507, 55979), (727, 39039), (1001, 28353), (1183, 23991), (1859, 15267), (2181, 13013), (3003, 9451), (3549, 7997), (5089, 5577)]