21941143

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{829}}^1$

素因数の和:1054

約数の個数: 16

約数和(自身を含む): 26560000

約数和(自身を除く): 4618857

約数列:

[1, 7, 19, 133, 199, 829, 1393, 3781, 5803, 15751, 26467, 110257, 164971, 1154797, 3134449, 21941143]

約数ペア:

[(1, 21941143), (7, 3134449), (19, 1154797), (133, 164971), (199, 110257), (829, 26467), (1393, 15751), (3781, 5803)]