20971408

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{45197}}^1$

素因数の和:45234

約数の個数: 20

約数和(自身を含む): 42034140

約数和(自身を除く): 21062732

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 45197, 90394, 180788, 361576, 723152, 1310713, 2621426, 5242852, 10485704, 20971408]

約数ペア:

[(1, 20971408), (2, 10485704), (4, 5242852), (8, 2621426), (16, 1310713), (29, 723152), (58, 361576), (116, 180788), (232, 90394), (464, 45197)]