21031915048

素因数分解:

$2^3\times {\mathrm{10891}}^1\times {\mathrm{241391}}^1$

素因数の和:252288

約数の個数: 16

約数和(自身を含む): 39438624960

約数和(自身を除く): 18406709912

約数列:

[1, 2, 4, 8, 10891, 21782, 43564, 87128, 241391, 482782, 965564, 1931128, 2628989381, 5257978762, 10515957524, 21031915048]

約数ペア:

[(1, 21031915048), (2, 10515957524), (4, 5257978762), (8, 2628989381), (10891, 1931128), (21782, 965564), (43564, 482782), (87128, 241391)]