809781867

素因数分解:

$3^4\times {\mathrm{227}}^1\times {\mathrm{44041}}^1$

素因数の和:44280

約数の個数: 20

約数和(自身を含む): 1215030696

約数和(自身を除く): 405248829

約数列:

[1, 3, 9, 27, 81, 227, 681, 2043, 6129, 18387, 44041, 132123, 396369, 1189107, 3567321, 9997307, 29991921, 89975763, 269927289, 809781867]

約数ペア:

[(1, 809781867), (3, 269927289), (9, 89975763), (27, 29991921), (81, 9997307), (227, 3567321), (681, 1189107), (2043, 396369), (6129, 132123), (18387, 44041)]