21084364

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{11239}}^1$

素因数の和:11317

約数の個数: 24

約数和(自身を含む): 42801920

約数和(自身を除く): 21717556

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 11239, 22478, 44956, 78673, 157346, 314692, 753013, 1506026, 3012052, 5271091, 10542182, 21084364]

約数ペア:

[(1, 21084364), (2, 10542182), (4, 5271091), (7, 3012052), (14, 1506026), (28, 753013), (67, 314692), (134, 157346), (268, 78673), (469, 44956), (938, 22478), (1876, 11239)]