21166384

素因数分解:

$2^4\times {\mathrm{401}}^1\times {\mathrm{3299}}^1$

素因数の和:3708

約数の個数: 20

約数和(自身を含む): 41124600

約数和(自身を除く): 19958216

約数列:

[1, 2, 4, 8, 16, 401, 802, 1604, 3208, 3299, 6416, 6598, 13196, 26392, 52784, 1322899, 2645798, 5291596, 10583192, 21166384]

約数ペア:

[(1, 21166384), (2, 10583192), (4, 5291596), (8, 2645798), (16, 1322899), (401, 52784), (802, 26392), (1604, 13196), (3208, 6598), (3299, 6416)]