866781

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:88

約数の個数: 28

約数和(自身を含む): 1377180

約数和(自身を除く): 510399

約数列:

[1, 3, 9, 27, 29, 41, 81, 87, 123, 243, 261, 369, 729, 783, 1107, 1189, 2349, 3321, 3567, 7047, 9963, 10701, 21141, 29889, 32103, 96309, 288927, 866781]

約数ペア:

[(1, 866781), (3, 288927), (9, 96309), (27, 32103), (29, 29889), (41, 21141), (81, 10701), (87, 9963), (123, 7047), (243, 3567), (261, 3321), (369, 2349), (729, 1189), (783, 1107)]