20809089

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4787}}^1$

素因数の和:4826

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15962751

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4787, 14361, 33509, 43083, 100527, 110101, 129249, 301581, 330303, 770707, 904743, 990909, 2312121, 2972727, 6936363, 20809089]

約数ペア:

[(1, 20809089), (3, 6936363), (7, 2972727), (9, 2312121), (21, 990909), (23, 904743), (27, 770707), (63, 330303), (69, 301581), (161, 129249), (189, 110101), (207, 100527), (483, 43083), (621, 33509), (1449, 14361), (4347, 4787)]