25720281

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 40476800

約数和(自身を除く): 14756519

約数列:

[1, 3, 9, 19, 27, 57, 171, 181, 277, 513, 543, 831, 1629, 2493, 3439, 4887, 5263, 7479, 10317, 15789, 30951, 47367, 50137, 92853, 142101, 150411, 451233, 952603, 1353699, 2857809, 8573427, 25720281]

約数ペア:

[(1, 25720281), (3, 8573427), (9, 2857809), (19, 1353699), (27, 952603), (57, 451233), (171, 150411), (181, 142101), (277, 92853), (513, 50137), (543, 47367), (831, 30951), (1629, 15789), (2493, 10317), (3439, 7479), (4887, 5263)]