18987661

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2971}}^1$

素因数の和:3072

約数の個数: 16

約数和(自身を含む): 23966208

約数和(自身を除く): 4978547

約数列:

[1, 7, 11, 77, 83, 581, 913, 2971, 6391, 20797, 32681, 228767, 246593, 1726151, 2712523, 18987661]

約数ペア:

[(1, 18987661), (7, 2712523), (11, 1726151), (77, 246593), (83, 228767), (581, 32681), (913, 20797), (2971, 6391)]