19880531

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2593}}^1$

素因数の和:2662

約数の個数: 16

約数和(自身を含む): 23532768

約数和(自身を除く): 3652237

約数列:

[1, 11, 17, 41, 187, 451, 697, 2593, 7667, 28523, 44081, 106313, 484891, 1169443, 1807321, 19880531]

約数ペア:

[(1, 19880531), (11, 1807321), (17, 1169443), (41, 484891), (187, 106313), (451, 44081), (697, 28523), (2593, 7667)]