21130516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{563}}^1\times {\mathrm{853}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 40459104

約数和(自身を除く): 19328588

約数列:

[1, 2, 4, 11, 22, 44, 563, 853, 1126, 1706, 2252, 3412, 6193, 9383, 12386, 18766, 24772, 37532, 480239, 960478, 1920956, 5282629, 10565258, 21130516]

約数ペア:

[(1, 21130516), (2, 10565258), (4, 5282629), (11, 1920956), (22, 960478), (44, 480239), (563, 37532), (853, 24772), (1126, 18766), (1706, 12386), (2252, 9383), (3412, 6193)]