987321

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:416

約数の個数: 16

約数和(自身を含む): 1411200

約数和(自身を除く): 423879

約数列:

[1, 3, 23, 41, 69, 123, 349, 943, 1047, 2829, 8027, 14309, 24081, 42927, 329107, 987321]

約数ペア:

[(1, 987321), (3, 329107), (23, 42927), (41, 24081), (69, 14309), (123, 8027), (349, 2829), (943, 1047)]