251015037

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{21383}}^1$

素因数の和:21449

約数の個数: 32

約数和(自身を含む): 421521408

約数和(自身を除く): 170506371

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 11739, 21383, 64149, 149681, 277979, 449043, 833937, 919469, 1945853, 2758407, 5837559, 6436283, 11953097, 19308849, 35859291, 83671679, 251015037]

約数ペア:

[(1, 251015037), (3, 83671679), (7, 35859291), (13, 19308849), (21, 11953097), (39, 6436283), (43, 5837559), (91, 2758407), (129, 1945853), (273, 919469), (301, 833937), (559, 449043), (903, 277979), (1677, 149681), (3913, 64149), (11739, 21383)]