21113776

素因数分解:

$2^4\times {\mathrm{449}}^1\times {\mathrm{2939}}^1$

素因数の和:3396

約数の個数: 20

約数和(自身を含む): 41013000

約数和(自身を除く): 19899224

約数列:

[1, 2, 4, 8, 16, 449, 898, 1796, 2939, 3592, 5878, 7184, 11756, 23512, 47024, 1319611, 2639222, 5278444, 10556888, 21113776]

約数ペア:

[(1, 21113776), (2, 10556888), (4, 5278444), (8, 2639222), (16, 1319611), (449, 47024), (898, 23512), (1796, 11756), (2939, 7184), (3592, 5878)]