80981817

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{27743}}^1$

素因数の和:27892

約数の個数: 16

約数和(自身を含む): 124293120

約数和(自身を除く): 43311303

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 27743, 83229, 194201, 582603, 3856277, 11568831, 26993939, 80981817]

約数ペア:

[(1, 80981817), (3, 26993939), (7, 11568831), (21, 3856277), (139, 582603), (417, 194201), (973, 83229), (2919, 27743)]