20551916

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1259}}^1$

素因数の和:1334

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25170964

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 77, 106, 154, 212, 308, 371, 583, 742, 1166, 1259, 1484, 2332, 2518, 4081, 5036, 8162, 8813, 13849, 16324, 17626, 27698, 35252, 55396, 66727, 96943, 133454, 193886, 266908, 387772, 467089, 733997, 934178, 1467994, 1868356, 2935988, 5137979, 10275958, 20551916]

約数ペア:

[(1, 20551916), (2, 10275958), (4, 5137979), (7, 2935988), (11, 1868356), (14, 1467994), (22, 934178), (28, 733997), (44, 467089), (53, 387772), (77, 266908), (106, 193886), (154, 133454), (212, 96943), (308, 66727), (371, 55396), (583, 35252), (742, 27698), (1166, 17626), (1259, 16324), (1484, 13849), (2332, 8813), (2518, 8162), (4081, 5036)]