19378317

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 32694272

約数和(自身を除く): 13315955

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 103, 119, 217, 289, 309, 357, 527, 651, 721, 867, 1581, 1751, 2023, 2163, 3193, 3689, 5253, 6069, 8959, 9579, 11067, 12257, 22351, 26877, 29767, 36771, 54281, 62713, 67053, 89301, 162843, 188139, 208369, 379967, 625107, 922777, 1139901, 2768331, 6459439, 19378317]

約数ペア:

[(1, 19378317), (3, 6459439), (7, 2768331), (17, 1139901), (21, 922777), (31, 625107), (51, 379967), (93, 208369), (103, 188139), (119, 162843), (217, 89301), (289, 67053), (309, 62713), (357, 54281), (527, 36771), (651, 29767), (721, 26877), (867, 22351), (1581, 12257), (1751, 11067), (2023, 9579), (2163, 8959), (3193, 6069), (3689, 5253)]