21000869128

素因数分解:

$2^3\times {\mathrm{941}}^1\times {\mathrm{2789701}}^1$

素因数の和:2790648

約数の個数: 16

約数和(自身を含む): 39418489260

約数和(自身を除く): 18417620132

約数列:

[1, 2, 4, 8, 941, 1882, 3764, 7528, 2789701, 5579402, 11158804, 22317608, 2625108641, 5250217282, 10500434564, 21000869128]

約数ペア:

[(1, 21000869128), (2, 10500434564), (4, 5250217282), (8, 2625108641), (941, 22317608), (1882, 11158804), (3764, 5579402), (7528, 2789701)]