21058731

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{33911}}^1$

素因数の和:33943

約数の個数: 16

約数和(自身を含む): 32555520

約数和(自身を除く): 11496789

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 33911, 101733, 305199, 779953, 915597, 2339859, 7019577, 21058731]

約数ペア:

[(1, 21058731), (3, 7019577), (9, 2339859), (23, 915597), (27, 779953), (69, 305199), (207, 101733), (621, 33911)]