12421997

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 14561280

約数和(自身を除く): 2139283

約数列:

[1, 7, 89, 127, 157, 623, 889, 1099, 11303, 13973, 19939, 79121, 97811, 139573, 1774571, 12421997]

約数ペア:

[(1, 12421997), (7, 1774571), (89, 139573), (127, 97811), (157, 79121), (623, 19939), (889, 13973), (1099, 11303)]