218619081

素因数分解:

$3^9\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 340116480

約数和(自身を除く): 121497399

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 383, 729, 783, 1149, 2187, 2349, 3447, 6561, 7047, 10341, 11107, 19683, 21141, 31023, 33321, 63423, 93069, 99963, 190269, 279207, 299889, 570807, 837621, 899667, 2512863, 2699001, 7538589, 8097003, 24291009, 72873027, 218619081]

約数ペア:

[(1, 218619081), (3, 72873027), (9, 24291009), (27, 8097003), (29, 7538589), (81, 2699001), (87, 2512863), (243, 899667), (261, 837621), (383, 570807), (729, 299889), (783, 279207), (1149, 190269), (2187, 99963), (2349, 93069), (3447, 63423), (6561, 33321), (7047, 31023), (10341, 21141), (11107, 19683)]