21649684

素因数分解:

$2^2\times 7^1\times {\mathrm{701}}^1\times {\mathrm{1103}}^1$

素因数の和:1815

約数の個数: 24

約数和(自身を含む): 43400448

約数和(自身を除く): 21750764

約数列:

[1, 2, 4, 7, 14, 28, 701, 1103, 1402, 2206, 2804, 4412, 4907, 7721, 9814, 15442, 19628, 30884, 773203, 1546406, 3092812, 5412421, 10824842, 21649684]

約数ペア:

[(1, 21649684), (2, 10824842), (4, 5412421), (7, 3092812), (14, 1546406), (28, 773203), (701, 30884), (1103, 19628), (1402, 15442), (2206, 9814), (2804, 7721), (4412, 4907)]