20898567

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{4373}}^1$

素因数の和:4444

約数の個数: 20

約数和(自身を含む): 31755240

約数和(自身を除く): 10856673

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4373, 4779, 13119, 39357, 118071, 258007, 354213, 774021, 2322063, 6966189, 20898567]

約数ペア:

[(1, 20898567), (3, 6966189), (9, 2322063), (27, 774021), (59, 354213), (81, 258007), (177, 118071), (531, 39357), (1593, 13119), (4373, 4779)]