21071449

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1567}}^1$

素因数の和:1704

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 4668839

約数列:

[1, 7, 17, 113, 119, 791, 1567, 1921, 10969, 13447, 26639, 177071, 186473, 1239497, 3010207, 21071449]

約数ペア:

[(1, 21071449), (7, 3010207), (17, 1239497), (113, 186473), (119, 177071), (791, 26639), (1567, 13447), (1921, 10969)]