21941860

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5569}}^1$

素因数の和:5775

約数の個数: 24

約数和(自身を含む): 46320120

約数和(自身を除く): 24378260

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 5569, 11138, 22276, 27845, 55690, 111380, 1097093, 2194186, 4388372, 5485465, 10970930, 21941860]

約数ペア:

[(1, 21941860), (2, 10970930), (4, 5485465), (5, 4388372), (10, 2194186), (20, 1097093), (197, 111380), (394, 55690), (788, 27845), (985, 22276), (1970, 11138), (3940, 5569)]