28765011

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12277}}^1$

素因数の和:12362

約数の個数: 16

約数和(自身を含む): 42432768

約数和(自身を除く): 13667757

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 12277, 36831, 135047, 405141, 871667, 2615001, 9588337, 28765011]

約数ペア:

[(1, 28765011), (3, 9588337), (11, 2615001), (33, 871667), (71, 405141), (213, 135047), (781, 36831), (2343, 12277)]