20391112

素因数分解:

$2^3\times 7^1\times {\mathrm{364127}}^1$

素因数の和:364140

約数の個数: 16

約数和(自身を含む): 43695360

約数和(自身を除く): 23304248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 364127, 728254, 1456508, 2548889, 2913016, 5097778, 10195556, 20391112]

約数ペア:

[(1, 20391112), (2, 10195556), (4, 5097778), (7, 2913016), (8, 2548889), (14, 1456508), (28, 728254), (56, 364127)]