20837284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9319}}^1$

素因数の和:9379

約数の個数: 24

約数和(自身を含む): 40187840

約数和(自身を除く): 19350556

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9319, 18638, 37276, 121147, 242294, 400717, 484588, 801434, 1602868, 5209321, 10418642, 20837284]

約数ペア:

[(1, 20837284), (2, 10418642), (4, 5209321), (13, 1602868), (26, 801434), (43, 484588), (52, 400717), (86, 242294), (172, 121147), (559, 37276), (1118, 18638), (2236, 9319)]