278804539

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1831}}^1$

素因数の和:1927

約数の個数: 24

約数和(自身を含む): 325868832

約数和(自身を除く): 47064293

約数列:

[1, 13, 17, 53, 169, 221, 689, 901, 1831, 2873, 8957, 11713, 23803, 31127, 97043, 152269, 309439, 404651, 1261559, 1649731, 5260463, 16400267, 21446503, 278804539]

約数ペア:

[(1, 278804539), (13, 21446503), (17, 16400267), (53, 5260463), (169, 1649731), (221, 1261559), (689, 404651), (901, 309439), (1831, 152269), (2873, 97043), (8957, 31127), (11713, 23803)]