21081143528

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{673}}^1\times {\mathrm{126307}}^1$

素因数の和:127017

約数の個数: 32

約数和(自身を含む): 40863164160

約数和(自身を除く): 19782020632

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 673, 1346, 2692, 5384, 20863, 41726, 83452, 126307, 166904, 252614, 505228, 1010456, 3915517, 7831034, 15662068, 31324136, 85004611, 170009222, 340018444, 680036888, 2635142941, 5270285882, 10540571764, 21081143528]

約数ペア:

[(1, 21081143528), (2, 10540571764), (4, 5270285882), (8, 2635142941), (31, 680036888), (62, 340018444), (124, 170009222), (248, 85004611), (673, 31324136), (1346, 15662068), (2692, 7831034), (5384, 3915517), (20863, 1010456), (41726, 505228), (83452, 252614), (126307, 166904)]