81979317

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{14957}}^1$

素因数の和:15002

約数の個数: 32

約数和(自身を含む): 143596800

約数和(自身を除く): 61617483

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 5481, 14957, 44871, 104699, 134613, 314097, 403839, 433753, 942291, 1301259, 2826873, 3036271, 3903777, 9108813, 11711331, 27326439, 81979317]

約数ペア:

[(1, 81979317), (3, 27326439), (7, 11711331), (9, 9108813), (21, 3903777), (27, 3036271), (29, 2826873), (63, 1301259), (87, 942291), (189, 433753), (203, 403839), (261, 314097), (609, 134613), (783, 104699), (1827, 44871), (5481, 14957)]