19109871

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 32417280

約数和(自身を除く): 13307409

約数列:

[1, 3, 9, 11, 27, 33, 37, 47, 99, 111, 141, 297, 333, 407, 423, 517, 999, 1221, 1269, 1369, 1551, 1739, 3663, 4107, 4653, 5217, 10989, 12321, 13959, 15059, 15651, 19129, 36963, 45177, 46953, 57387, 64343, 135531, 172161, 193029, 406593, 516483, 579087, 707773, 1737261, 2123319, 6369957, 19109871]

約数ペア:

[(1, 19109871), (3, 6369957), (9, 2123319), (11, 1737261), (27, 707773), (33, 579087), (37, 516483), (47, 406593), (99, 193029), (111, 172161), (141, 135531), (297, 64343), (333, 57387), (407, 46953), (423, 45177), (517, 36963), (999, 19129), (1221, 15651), (1269, 15059), (1369, 13959), (1551, 12321), (1739, 10989), (3663, 5217), (4107, 4653)]