21904619

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2857}}^1$

素因数の和:2926

約数の個数: 16

約数和(自身を含む): 25927776

約数和(自身を除く): 4023157

約数列:

[1, 11, 17, 41, 187, 451, 697, 2857, 7667, 31427, 48569, 117137, 534259, 1288507, 1991329, 21904619]

約数ペア:

[(1, 21904619), (11, 1991329), (17, 1288507), (41, 534259), (187, 117137), (451, 48569), (697, 31427), (2857, 7667)]