21308434

素因数分解:

$2^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2111}}^1$

素因数の和:2230

約数の個数: 24

約数和(自身を含む): 37559808

約数和(自身を除く): 16251374

約数列:

[1, 2, 7, 14, 49, 98, 103, 206, 721, 1442, 2111, 4222, 5047, 10094, 14777, 29554, 103439, 206878, 217433, 434866, 1522031, 3044062, 10654217, 21308434]

約数ペア:

[(1, 21308434), (2, 10654217), (7, 3044062), (14, 1522031), (49, 434866), (98, 217433), (103, 206878), (206, 103439), (721, 29554), (1442, 14777), (2111, 10094), (4222, 5047)]