20963259

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 32961600

約数和(自身を除く): 11998341

約数列:

[1, 3, 9, 27, 29, 41, 87, 123, 261, 369, 653, 783, 1107, 1189, 1959, 3567, 5877, 10701, 17631, 18937, 26773, 32103, 56811, 80319, 170433, 240957, 511299, 722871, 776417, 2329251, 6987753, 20963259]

約数ペア:

[(1, 20963259), (3, 6987753), (9, 2329251), (27, 776417), (29, 722871), (41, 511299), (87, 240957), (123, 170433), (261, 80319), (369, 56811), (653, 32103), (783, 26773), (1107, 18937), (1189, 17631), (1959, 10701), (3567, 5877)]