20225997

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 33962880

約数和(自身を除く): 13736883

約数列:

[1, 3, 9, 11, 27, 33, 41, 99, 121, 123, 151, 297, 363, 369, 451, 453, 1089, 1107, 1353, 1359, 1661, 3267, 4059, 4077, 4961, 4983, 6191, 12177, 14883, 14949, 18271, 18573, 44649, 44847, 54813, 55719, 68101, 133947, 164439, 167157, 204303, 493317, 612909, 749111, 1838727, 2247333, 6741999, 20225997]

約数ペア:

[(1, 20225997), (3, 6741999), (9, 2247333), (11, 1838727), (27, 749111), (33, 612909), (41, 493317), (99, 204303), (121, 167157), (123, 164439), (151, 133947), (297, 68101), (363, 55719), (369, 54813), (451, 44847), (453, 44649), (1089, 18573), (1107, 18271), (1353, 14949), (1359, 14883), (1661, 12177), (3267, 6191), (4059, 4983), (4077, 4961)]