20790385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54001}}^1$

素因数の和:54024

約数の個数: 16

約数和(自身を含む): 31105152

約数和(自身を除く): 10314767

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54001, 270005, 378007, 594011, 1890035, 2970055, 4158077, 20790385]

約数ペア:

[(1, 20790385), (5, 4158077), (7, 2970055), (11, 1890035), (35, 594011), (55, 378007), (77, 270005), (385, 54001)]