81972009

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{44867}}^1$

素因数の和:44909

約数の個数: 24

約数和(自身を含む): 139988160

約数和(自身を除く): 58016151

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 44867, 134601, 314069, 403803, 942207, 1301143, 2826621, 3903429, 9108001, 11710287, 27324003, 81972009]

約数ペア:

[(1, 81972009), (3, 27324003), (7, 11710287), (9, 9108001), (21, 3903429), (29, 2826621), (63, 1301143), (87, 942207), (203, 403803), (261, 314069), (609, 134601), (1827, 44867)]