21804104

素因数分解:

$2^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1103}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 46897920

約数和(自身を除く): 25093816

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353, 706, 1103, 1412, 2206, 2471, 2824, 4412, 4942, 7721, 8824, 9884, 15442, 19768, 30884, 61768, 389359, 778718, 1557436, 2725513, 3114872, 5451026, 10902052, 21804104]

約数ペア:

[(1, 21804104), (2, 10902052), (4, 5451026), (7, 3114872), (8, 2725513), (14, 1557436), (28, 778718), (56, 389359), (353, 61768), (706, 30884), (1103, 19768), (1412, 15442), (2206, 9884), (2471, 8824), (2824, 7721), (4412, 4942)]