21758128

素因数分解:

$2^4\times 7^1\times {\mathrm{194269}}^1$

素因数の和:194284

約数の個数: 20

約数和(自身を含む): 48178960

約数和(自身を除く): 26420832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194269, 388538, 777076, 1359883, 1554152, 2719766, 3108304, 5439532, 10879064, 21758128]

約数ペア:

[(1, 21758128), (2, 10879064), (4, 5439532), (7, 3108304), (8, 2719766), (14, 1554152), (16, 1359883), (28, 777076), (56, 388538), (112, 194269)]