21309134

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{138371}}^1$

素因数の和:138391

約数の個数: 16

約数和(自身を含む): 39851136

約数和(自身を除く): 18542002

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 138371, 276742, 968597, 1522081, 1937194, 3044162, 10654567, 21309134]

約数ペア:

[(1, 21309134), (2, 10654567), (7, 3044162), (11, 1937194), (14, 1522081), (22, 968597), (77, 276742), (154, 138371)]