21414988

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{10477}}^1$

素因数の和:10561

約数の個数: 24

約数和(自身を含む): 43420832

約数和(自身を除く): 22005844

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 10477, 20954, 41908, 73339, 146678, 293356, 764821, 1529642, 3059284, 5353747, 10707494, 21414988]

約数ペア:

[(1, 21414988), (2, 10707494), (4, 5353747), (7, 3059284), (14, 1529642), (28, 764821), (73, 293356), (146, 146678), (292, 73339), (511, 41908), (1022, 20954), (2044, 10477)]