2155265

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{463}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 3173760

約数和(自身を除く): 1018495

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 463, 665, 931, 2315, 3241, 4655, 8797, 16205, 22687, 43985, 61579, 113435, 307895, 431053, 2155265]

約数ペア:

[(1, 2155265), (5, 431053), (7, 307895), (19, 113435), (35, 61579), (49, 43985), (95, 22687), (133, 16205), (245, 8797), (463, 4655), (665, 3241), (931, 2315)]