21340256

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2027}}^1$

素因数の和:2091

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 27721120

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 2027, 2632, 4054, 5264, 8108, 10528, 14189, 16216, 28378, 32432, 56756, 64864, 95269, 113512, 190538, 227024, 381076, 454048, 666883, 762152, 1333766, 1524304, 2667532, 3048608, 5335064, 10670128, 21340256]

約数ペア:

[(1, 21340256), (2, 10670128), (4, 5335064), (7, 3048608), (8, 2667532), (14, 1524304), (16, 1333766), (28, 762152), (32, 666883), (47, 454048), (56, 381076), (94, 227024), (112, 190538), (188, 113512), (224, 95269), (329, 64864), (376, 56756), (658, 32432), (752, 28378), (1316, 16216), (1504, 14189), (2027, 10528), (2632, 8108), (4054, 5264)]