128873451

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{3319}}^1$

素因数の和:3415

約数の個数: 24

約数和(自身を含む): 201112320

約数和(自身を除く): 72238869

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 1849, 3319, 5547, 9957, 12943, 23233, 38829, 69699, 142717, 428151, 999019, 2997057, 6136831, 18410493, 42957817, 128873451]

約数ペア:

[(1, 128873451), (3, 42957817), (7, 18410493), (21, 6136831), (43, 2997057), (129, 999019), (301, 428151), (903, 142717), (1849, 69699), (3319, 38829), (5547, 23233), (9957, 12943)]