20872136

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{55511}}^1$

素因数の和:55564

約数の個数: 16

約数和(自身を含む): 39968640

約数和(自身を除く): 19096504

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 55511, 111022, 222044, 444088, 2609017, 5218034, 10436068, 20872136]

約数ペア:

[(1, 20872136), (2, 10436068), (4, 5218034), (8, 2609017), (47, 444088), (94, 222044), (188, 111022), (376, 55511)]