21388272

素因数分解:

$2^4\times 3^1\times {\mathrm{445589}}^1$

素因数の和:445600

約数の個数: 20

約数和(自身を含む): 55253160

約数和(自身を除く): 33864888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 445589, 891178, 1336767, 1782356, 2673534, 3564712, 5347068, 7129424, 10694136, 21388272]

約数ペア:

[(1, 21388272), (2, 10694136), (3, 7129424), (4, 5347068), (6, 3564712), (8, 2673534), (12, 1782356), (16, 1336767), (24, 891178), (48, 445589)]