20891486

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{463}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 39287808

約数和(自身を除く): 18396322

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 293, 463, 586, 926, 2051, 3223, 3241, 4102, 5093, 6446, 6482, 10186, 22561, 35651, 45122, 71302, 135659, 271318, 949613, 1492249, 1899226, 2984498, 10445743, 20891486]

約数ペア:

[(1, 20891486), (2, 10445743), (7, 2984498), (11, 1899226), (14, 1492249), (22, 949613), (77, 271318), (154, 135659), (293, 71302), (463, 45122), (586, 35651), (926, 22561), (2051, 10186), (3223, 6482), (3241, 6446), (4102, 5093)]