28319557

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2999}}^1$

素因数の和:3096

約数の個数: 16

約数和(自身を含む): 34560000

約数和(自身を除く): 6240443

約数列:

[1, 7, 19, 71, 133, 497, 1349, 2999, 9443, 20993, 56981, 212929, 398867, 1490503, 4045651, 28319557]

約数ペア:

[(1, 28319557), (7, 4045651), (19, 1490503), (71, 398867), (133, 212929), (497, 56981), (1349, 20993), (2999, 9443)]