21090146

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{136949}}^1$

素因数の和:136969

約数の個数: 16

約数和(自身を含む): 39441600

約数和(自身を除く): 18351454

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 136949, 273898, 958643, 1506439, 1917286, 3012878, 10545073, 21090146]

約数ペア:

[(1, 21090146), (2, 10545073), (7, 3012878), (11, 1917286), (14, 1506439), (22, 958643), (77, 273898), (154, 136949)]