128426859

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 208286208

約数和(自身を除く): 79859349

約数列:

[1, 3, 9, 11, 33, 71, 99, 121, 151, 213, 363, 453, 639, 781, 1089, 1331, 1359, 1661, 2343, 3993, 4983, 7029, 8591, 10721, 11979, 14949, 18271, 25773, 32163, 54813, 77319, 94501, 96489, 117931, 164439, 200981, 283503, 353793, 602943, 850509, 1061379, 1297241, 1808829, 3891723, 11675169, 14269651, 42808953, 128426859]

約数ペア:

[(1, 128426859), (3, 42808953), (9, 14269651), (11, 11675169), (33, 3891723), (71, 1808829), (99, 1297241), (121, 1061379), (151, 850509), (213, 602943), (363, 353793), (453, 283503), (639, 200981), (781, 164439), (1089, 117931), (1331, 96489), (1359, 94501), (1661, 77319), (2343, 54813), (3993, 32163), (4983, 25773), (7029, 18271), (8591, 14949), (10721, 11979)]