20520784

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55763}}^1$

素因数の和:55794

約数の個数: 20

約数和(自身を含む): 41488416

約数和(自身を除く): 20967632

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55763, 111526, 223052, 446104, 892208, 1282549, 2565098, 5130196, 10260392, 20520784]

約数ペア:

[(1, 20520784), (2, 10260392), (4, 5130196), (8, 2565098), (16, 1282549), (23, 892208), (46, 446104), (92, 223052), (184, 111526), (368, 55763)]