19421259

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2663}}^1$

素因数の和:2707

約数の個数: 32

約数和(自身を含む): 32223744

約数和(自身を除く): 12802485

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 2663, 7293, 7989, 29293, 34619, 45271, 87879, 103857, 135813, 380809, 497981, 588523, 1142427, 1493943, 1765569, 6473753, 19421259]

約数ペア:

[(1, 19421259), (3, 6473753), (11, 1765569), (13, 1493943), (17, 1142427), (33, 588523), (39, 497981), (51, 380809), (143, 135813), (187, 103857), (221, 87879), (429, 45271), (561, 34619), (663, 29293), (2431, 7989), (2663, 7293)]