31872771

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{839}}^1$

素因数の和:925

約数の個数: 40

約数和(自身を含む): 55292160

約数和(自身を除く): 23419389

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 469, 567, 603, 839, 1407, 1809, 2517, 4221, 5427, 5873, 7551, 12663, 17619, 22653, 37989, 52857, 56213, 67959, 158571, 168639, 393491, 475713, 505917, 1180473, 1517751, 3541419, 4553253, 10624257, 31872771]

約数ペア:

[(1, 31872771), (3, 10624257), (7, 4553253), (9, 3541419), (21, 1517751), (27, 1180473), (63, 505917), (67, 475713), (81, 393491), (189, 168639), (201, 158571), (469, 67959), (567, 56213), (603, 52857), (839, 37989), (1407, 22653), (1809, 17619), (2517, 12663), (4221, 7551), (5427, 5873)]