20391224

素因数分解:

$2^3\times 7^1\times {\mathrm{364129}}^1$

素因数の和:364142

約数の個数: 16

約数和(自身を含む): 43695600

約数和(自身を除く): 23304376

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 364129, 728258, 1456516, 2548903, 2913032, 5097806, 10195612, 20391224]

約数ペア:

[(1, 20391224), (2, 10195612), (4, 5097806), (7, 2913032), (8, 2548903), (14, 1456516), (28, 728258), (56, 364129)]