21340989

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2833}}^1$

素因数の和:2879

約数の個数: 24

約数和(自身を含む): 33010432

約数和(自身を除く): 11669443

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2833, 7533, 8499, 25497, 76491, 87823, 229473, 263469, 688419, 790407, 2371221, 7113663, 21340989]

約数ペア:

[(1, 21340989), (3, 7113663), (9, 2371221), (27, 790407), (31, 688419), (81, 263469), (93, 229473), (243, 87823), (279, 76491), (837, 25497), (2511, 8499), (2833, 7533)]