21548216

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20182984

約数列:

[1, 2, 4, 8, 59, 71, 118, 142, 236, 284, 472, 568, 643, 1286, 2572, 4189, 5144, 8378, 16756, 33512, 37937, 45653, 75874, 91306, 151748, 182612, 303496, 365224, 2693527, 5387054, 10774108, 21548216]

約数ペア:

[(1, 21548216), (2, 10774108), (4, 5387054), (8, 2693527), (59, 365224), (71, 303496), (118, 182612), (142, 151748), (236, 91306), (284, 75874), (472, 45653), (568, 37937), (643, 33512), (1286, 16756), (2572, 8378), (4189, 5144)]