21211792

素因数分解:

$2^4\times 7^1\times {\mathrm{189391}}^1$

素因数の和:189406

約数の個数: 20

約数和(自身を含む): 46969216

約数和(自身を除く): 25757424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189391, 378782, 757564, 1325737, 1515128, 2651474, 3030256, 5302948, 10605896, 21211792]

約数ペア:

[(1, 21211792), (2, 10605896), (4, 5302948), (7, 3030256), (8, 2651474), (14, 1515128), (16, 1325737), (28, 757564), (56, 378782), (112, 189391)]