20990949

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{12043}}^1$

素因数の和:12136

約数の個数: 16

約数和(自身を含む): 32374272

約数和(自身を除く): 11383323

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 12043, 36129, 84301, 252903, 999569, 2998707, 6996983, 20990949]

約数ペア:

[(1, 20990949), (3, 6996983), (7, 2998707), (21, 999569), (83, 252903), (249, 84301), (581, 36129), (1743, 12043)]