7640871

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1259}}^1$

素因数の和:1303

約数の個数: 24

約数和(自身を含む): 12378240

約数和(自身を除く): 4737369

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 1259, 2023, 3777, 6069, 8813, 21403, 26439, 64209, 149821, 363851, 449463, 1091553, 2546957, 7640871]

約数ペア:

[(1, 7640871), (3, 2546957), (7, 1091553), (17, 449463), (21, 363851), (51, 149821), (119, 64209), (289, 26439), (357, 21403), (867, 8813), (1259, 6069), (2023, 3777)]