20980527

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{1039}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 28753920

約数和(自身を除く): 7773393

約数列:

[1, 3, 53, 127, 159, 381, 1039, 3117, 6731, 20193, 55067, 131953, 165201, 395859, 6993509, 20980527]

約数ペア:

[(1, 20980527), (3, 6993509), (53, 395859), (127, 165201), (159, 131953), (381, 55067), (1039, 20193), (3117, 6731)]