1271991

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 2093040

約数和(自身を除く): 821049

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 509, 833, 1527, 2499, 3563, 8653, 10689, 24941, 25959, 60571, 74823, 181713, 423997, 1271991]

約数ペア:

[(1, 1271991), (3, 423997), (7, 181713), (17, 74823), (21, 60571), (49, 25959), (51, 24941), (119, 10689), (147, 8653), (357, 3563), (509, 2499), (833, 1527)]