13287967

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 17113680

約数和(自身を除く): 3825713

約数列:

[1, 7, 11, 49, 77, 89, 277, 539, 623, 979, 1939, 3047, 4361, 6853, 13573, 21329, 24653, 47971, 149303, 172571, 271183, 1207997, 1898281, 13287967]

約数ペア:

[(1, 13287967), (7, 1898281), (11, 1207997), (49, 271183), (77, 172571), (89, 149303), (277, 47971), (539, 24653), (623, 21329), (979, 13573), (1939, 6853), (3047, 4361)]