21460389

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:2028

約数の個数: 16

約数和(自身を含む): 29579904

約数和(自身を除く): 8119515

約数列:

[1, 3, 53, 71, 159, 213, 1901, 3763, 5703, 11289, 100753, 134971, 302259, 404913, 7153463, 21460389]

約数ペア:

[(1, 21460389), (3, 7153463), (53, 404913), (71, 302259), (159, 134971), (213, 100753), (1901, 11289), (3763, 5703)]