21084816

素因数分解:

$2^4\times 3^1\times {\mathrm{509}}^1\times {\mathrm{863}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 54639360

約数和(自身を除く): 33554544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 509, 863, 1018, 1527, 1726, 2036, 2589, 3054, 3452, 4072, 5178, 6108, 6904, 8144, 10356, 12216, 13808, 20712, 24432, 41424, 439267, 878534, 1317801, 1757068, 2635602, 3514136, 5271204, 7028272, 10542408, 21084816]

約数ペア:

[(1, 21084816), (2, 10542408), (3, 7028272), (4, 5271204), (6, 3514136), (8, 2635602), (12, 1757068), (16, 1317801), (24, 878534), (48, 439267), (509, 41424), (863, 24432), (1018, 20712), (1527, 13808), (1726, 12216), (2036, 10356), (2589, 8144), (3054, 6904), (3452, 6108), (4072, 5178)]