21107696

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{3323}}^1$

素因数の和:3728

約数の個数: 20

約数和(自身を含む): 41011512

約数和(自身を除く): 19903816

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 3323, 6352, 6646, 13292, 26584, 53168, 1319231, 2638462, 5276924, 10553848, 21107696]

約数ペア:

[(1, 21107696), (2, 10553848), (4, 5276924), (8, 2638462), (16, 1319231), (397, 53168), (794, 26584), (1588, 13292), (3176, 6646), (3323, 6352)]