217621809

素因数分解:

$3^8\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:874

約数の個数: 36

約数和(自身を含む): 334790820

約数和(自身を除く): 117169011

約数列:

[1, 3, 9, 27, 41, 81, 123, 243, 369, 729, 809, 1107, 2187, 2427, 3321, 6561, 7281, 9963, 21843, 29889, 33169, 65529, 89667, 99507, 196587, 269001, 298521, 589761, 895563, 1769283, 2686689, 5307849, 8060067, 24180201, 72540603, 217621809]

約数ペア:

[(1, 217621809), (3, 72540603), (9, 24180201), (27, 8060067), (41, 5307849), (81, 2686689), (123, 1769283), (243, 895563), (369, 589761), (729, 298521), (809, 269001), (1107, 196587), (2187, 99507), (2427, 89667), (3321, 65529), (6561, 33169), (7281, 29889), (9963, 21843)]