21987248

素因数分解:

$2^4\times {\mathrm{769}}^1\times {\mathrm{1787}}^1$

素因数の和:2564

約数の個数: 20

約数和(自身を含む): 42679560

約数和(自身を除く): 20692312

約数列:

[1, 2, 4, 8, 16, 769, 1538, 1787, 3076, 3574, 6152, 7148, 12304, 14296, 28592, 1374203, 2748406, 5496812, 10993624, 21987248]

約数ペア:

[(1, 21987248), (2, 10993624), (4, 5496812), (8, 2748406), (16, 1374203), (769, 28592), (1538, 14296), (1787, 12304), (3076, 7148), (3574, 6152)]