28292577

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{6991}}^1$

素因数の和:7084

約数の個数: 16

約数和(自身を含む): 40273920

約数和(自身を除く): 11981343

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 6991, 20973, 132829, 398487, 496361, 1489083, 9430859, 28292577]

約数ペア:

[(1, 28292577), (3, 9430859), (19, 1489083), (57, 496361), (71, 398487), (213, 132829), (1349, 20973), (4047, 6991)]