21174265

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1873}}^1$

素因数の和:1921

約数の個数: 32

約数和(自身を含む): 32382720

約数和(自身を除く): 11208455

約数列:

[1, 5, 7, 17, 19, 35, 85, 95, 119, 133, 323, 595, 665, 1615, 1873, 2261, 9365, 11305, 13111, 31841, 35587, 65555, 159205, 177935, 222887, 249109, 604979, 1114435, 1245545, 3024895, 4234853, 21174265]

約数ペア:

[(1, 21174265), (5, 4234853), (7, 3024895), (17, 1245545), (19, 1114435), (35, 604979), (85, 249109), (95, 222887), (119, 177935), (133, 159205), (323, 65555), (595, 35587), (665, 31841), (1615, 13111), (1873, 11305), (2261, 9365)]