20840246

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1549}}^1$

素因数の和:1620

約数の個数: 24

約数和(自身を含む): 36939600

約数和(自身を除く): 16099354

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 961, 1549, 1922, 3098, 6727, 10843, 13454, 21686, 48019, 96038, 336133, 672266, 1488589, 2977178, 10420123, 20840246]

約数ペア:

[(1, 20840246), (2, 10420123), (7, 2977178), (14, 1488589), (31, 672266), (62, 336133), (217, 96038), (434, 48019), (961, 21686), (1549, 13454), (1922, 10843), (3098, 6727)]