21856856

素因数分解:

$2^3\times 7^1\times {\mathrm{607}}^1\times {\mathrm{643}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 46986240

約数和(自身を除く): 25129384

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 607, 643, 1214, 1286, 2428, 2572, 4249, 4501, 4856, 5144, 8498, 9002, 16996, 18004, 33992, 36008, 390301, 780602, 1561204, 2732107, 3122408, 5464214, 10928428, 21856856]

約数ペア:

[(1, 21856856), (2, 10928428), (4, 5464214), (7, 3122408), (8, 2732107), (14, 1561204), (28, 780602), (56, 390301), (607, 36008), (643, 33992), (1214, 18004), (1286, 16996), (2428, 9002), (2572, 8498), (4249, 5144), (4501, 4856)]