81430881

素因数分解:

$3^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{6791}}^1$

素因数の和:7372

約数の個数: 16

約数和(自身を含む): 124320768

約数和(自身を除く): 42889887

約数列:

[1, 3, 7, 21, 571, 1713, 3997, 6791, 11991, 20373, 47537, 142611, 3877661, 11632983, 27143627, 81430881]

約数ペア:

[(1, 81430881), (3, 27143627), (7, 11632983), (21, 3877661), (571, 142611), (1713, 47537), (3997, 20373), (6791, 11991)]