21491824

素因数分解:

$2^4\times {\mathrm{839}}^1\times {\mathrm{1601}}^1$

素因数の和:2448

約数の個数: 20

約数和(自身を含む): 41716080

約数和(自身を除く): 20224256

約数列:

[1, 2, 4, 8, 16, 839, 1601, 1678, 3202, 3356, 6404, 6712, 12808, 13424, 25616, 1343239, 2686478, 5372956, 10745912, 21491824]

約数ペア:

[(1, 21491824), (2, 10745912), (4, 5372956), (8, 2686478), (16, 1343239), (839, 25616), (1601, 13424), (1678, 12808), (3202, 6712), (3356, 6404)]