21931900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{3089}}^1$

素因数の和:3174

約数の個数: 36

約数和(自身を含む): 48278160

約数和(自身を除く): 26346260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3089, 3550, 6178, 7100, 12356, 15445, 30890, 61780, 77225, 154450, 219319, 308900, 438638, 877276, 1096595, 2193190, 4386380, 5482975, 10965950, 21931900]

約数ペア:

[(1, 21931900), (2, 10965950), (4, 5482975), (5, 4386380), (10, 2193190), (20, 1096595), (25, 877276), (50, 438638), (71, 308900), (100, 219319), (142, 154450), (284, 77225), (355, 61780), (710, 30890), (1420, 15445), (1775, 12356), (3089, 7100), (3550, 6178)]