21005856

素因数分解:

$2^5\times 3^2\times {\mathrm{72937}}^1$

素因数の和:72953

約数の個数: 36

約数和(自身を含む): 59736222

約数和(自身を除く): 38730366

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 72937, 145874, 218811, 291748, 437622, 583496, 656433, 875244, 1166992, 1312866, 1750488, 2333984, 2625732, 3500976, 5251464, 7001952, 10502928, 21005856]

約数ペア:

[(1, 21005856), (2, 10502928), (3, 7001952), (4, 5251464), (6, 3500976), (8, 2625732), (9, 2333984), (12, 1750488), (16, 1312866), (18, 1166992), (24, 875244), (32, 656433), (36, 583496), (48, 437622), (72, 291748), (96, 218811), (144, 145874), (288, 72937)]