18539478

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{359}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 42681600

約数和(自身を除く): 24142122

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 151, 171, 302, 342, 359, 453, 718, 906, 1077, 1359, 2154, 2718, 2869, 3231, 5738, 6462, 6821, 8607, 13642, 17214, 20463, 25821, 40926, 51642, 54209, 61389, 108418, 122778, 162627, 325254, 487881, 975762, 1029971, 2059942, 3089913, 6179826, 9269739, 18539478]

約数ペア:

[(1, 18539478), (2, 9269739), (3, 6179826), (6, 3089913), (9, 2059942), (18, 1029971), (19, 975762), (38, 487881), (57, 325254), (114, 162627), (151, 122778), (171, 108418), (302, 61389), (342, 54209), (359, 51642), (453, 40926), (718, 25821), (906, 20463), (1077, 17214), (1359, 13642), (2154, 8607), (2718, 6821), (2869, 6462), (3231, 5738)]