21391424

素因数分解:

$2^6\times {\mathrm{83}}^1\times {\mathrm{4027}}^1$

素因数の和:4122

約数の個数: 28

約数和(自身を含む): 42970704

約数和(自身を除く): 21579280

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 166, 332, 664, 1328, 2656, 4027, 5312, 8054, 16108, 32216, 64432, 128864, 257728, 334241, 668482, 1336964, 2673928, 5347856, 10695712, 21391424]

約数ペア:

[(1, 21391424), (2, 10695712), (4, 5347856), (8, 2673928), (16, 1336964), (32, 668482), (64, 334241), (83, 257728), (166, 128864), (332, 64432), (664, 32216), (1328, 16108), (2656, 8054), (4027, 5312)]