21774256

素因数分解:

$2^4\times 7^1\times {\mathrm{194413}}^1$

素因数の和:194428

約数の個数: 20

約数和(自身を含む): 48214672

約数和(自身を除く): 26440416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194413, 388826, 777652, 1360891, 1555304, 2721782, 3110608, 5443564, 10887128, 21774256]

約数ペア:

[(1, 21774256), (2, 10887128), (4, 5443564), (7, 3110608), (8, 2721782), (14, 1555304), (16, 1360891), (28, 777652), (56, 388826), (112, 194413)]