20916662

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 35326368

約数和(自身を除く): 14409706

約数列:

[1, 2, 13, 26, 43, 53, 86, 106, 353, 559, 689, 706, 1118, 1378, 2279, 4558, 4589, 9178, 15179, 18709, 29627, 30358, 37418, 59254, 197327, 243217, 394654, 486434, 804487, 1608974, 10458331, 20916662]

約数ペア:

[(1, 20916662), (2, 10458331), (13, 1608974), (26, 804487), (43, 486434), (53, 394654), (86, 243217), (106, 197327), (353, 59254), (559, 37418), (689, 30358), (706, 29627), (1118, 18709), (1378, 15179), (2279, 9178), (4558, 4589)]