28091248

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{19727}}^1$

素因数の和:19824

約数の個数: 20

約数和(自身を含む): 55041120

約数和(自身を除く): 26949872

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 19727, 39454, 78908, 157816, 315632, 1755703, 3511406, 7022812, 14045624, 28091248]

約数ペア:

[(1, 28091248), (2, 14045624), (4, 7022812), (8, 3511406), (16, 1755703), (89, 315632), (178, 157816), (356, 78908), (712, 39454), (1424, 19727)]