21196784

素因数分解:

$2^4\times 7^1\times {\mathrm{189257}}^1$

素因数の和:189272

約数の個数: 20

約数和(自身を含む): 46935984

約数和(自身を除く): 25739200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189257, 378514, 757028, 1324799, 1514056, 2649598, 3028112, 5299196, 10598392, 21196784]

約数ペア:

[(1, 21196784), (2, 10598392), (4, 5299196), (7, 3028112), (8, 2649598), (14, 1514056), (16, 1324799), (28, 757028), (56, 378514), (112, 189257)]