2051721

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1123}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 3506880

約数和(自身を除く): 1455159

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1123, 1827, 3369, 7861, 10107, 23583, 32567, 70749, 97701, 227969, 293103, 683907, 2051721]

約数ペア:

[(1, 2051721), (3, 683907), (7, 293103), (9, 227969), (21, 97701), (29, 70749), (63, 32567), (87, 23583), (203, 10107), (261, 7861), (609, 3369), (1123, 1827)]