2640033

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{2963}}^1$

素因数の和:2986

約数の個数: 20

約数和(自身を含む): 4303728

約数和(自身を除く): 1663695

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 2963, 8889, 26667, 32593, 80001, 97779, 240003, 293337, 880011, 2640033]

約数ペア:

[(1, 2640033), (3, 880011), (9, 293337), (11, 240003), (27, 97779), (33, 80001), (81, 32593), (99, 26667), (297, 8889), (891, 2963)]