19640151

素因数分解:

$3^4\times {\mathrm{17}}^2\times {\mathrm{839}}^1$

素因数の和:885

約数の個数: 30

約数和(自身を含む): 31203480

約数和(自身を除く): 11563329

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 289, 459, 839, 867, 1377, 2517, 2601, 7551, 7803, 14263, 22653, 23409, 42789, 67959, 128367, 242471, 385101, 727413, 1155303, 2182239, 6546717, 19640151]

約数ペア:

[(1, 19640151), (3, 6546717), (9, 2182239), (17, 1155303), (27, 727413), (51, 385101), (81, 242471), (153, 128367), (289, 67959), (459, 42789), (839, 23409), (867, 22653), (1377, 14263), (2517, 7803), (2601, 7551)]