18157909

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7607}}^1$

素因数の和:7656

約数の個数: 16

約数和(自身を含む): 23371776

約数和(自身を除く): 5213867

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 7607, 53249, 83677, 235817, 585739, 1650719, 2593987, 18157909]

約数ペア:

[(1, 18157909), (7, 2593987), (11, 1650719), (31, 585739), (77, 235817), (217, 83677), (341, 53249), (2387, 7607)]