21175184

素因数分解:

$2^4\times {\mathrm{769}}^1\times {\mathrm{1721}}^1$

素因数の和:2498

約数の個数: 20

約数和(自身を含む): 41104140

約数和(自身を除く): 19928956

約数列:

[1, 2, 4, 8, 16, 769, 1538, 1721, 3076, 3442, 6152, 6884, 12304, 13768, 27536, 1323449, 2646898, 5293796, 10587592, 21175184]

約数ペア:

[(1, 21175184), (2, 10587592), (4, 5293796), (8, 2646898), (16, 1323449), (769, 27536), (1538, 13768), (1721, 12304), (3076, 6884), (3442, 6152)]