679959

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 1153152

約数和(自身を除く): 473193

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 251, 301, 387, 753, 903, 1757, 2259, 2709, 5271, 10793, 15813, 32379, 75551, 97137, 226653, 679959]

約数ペア:

[(1, 679959), (3, 226653), (7, 97137), (9, 75551), (21, 32379), (43, 15813), (63, 10793), (129, 5271), (251, 2709), (301, 2259), (387, 1757), (753, 903)]