861569289

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{135403}}^1$

素因数の和:135517

約数の個数: 24

約数和(自身を含む): 1436365632

約数和(自身を除く): 574796343

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 6363, 135403, 406209, 947821, 1218627, 2843463, 8530389, 13675703, 41027109, 95729921, 123081327, 287189763, 861569289]

約数ペア:

[(1, 861569289), (3, 287189763), (7, 123081327), (9, 95729921), (21, 41027109), (63, 13675703), (101, 8530389), (303, 2843463), (707, 1218627), (909, 947821), (2121, 406209), (6363, 135403)]