27780003

素因数分解:

$3^6\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:790

約数の個数: 28

約数和(自身を含む): 42495840

約数和(自身を除く): 14715837

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 719, 729, 1431, 2157, 4293, 6471, 12879, 19413, 38107, 38637, 58239, 114321, 174717, 342963, 524151, 1028889, 3086667, 9260001, 27780003]

約数ペア:

[(1, 27780003), (3, 9260001), (9, 3086667), (27, 1028889), (53, 524151), (81, 342963), (159, 174717), (243, 114321), (477, 58239), (719, 38637), (729, 38107), (1431, 19413), (2157, 12879), (4293, 6471)]