81643133

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 102144000

約数和(自身を除く): 20500867

約数列:

[1, 11, 13, 19, 143, 151, 199, 209, 247, 1661, 1963, 2189, 2587, 2717, 2869, 3781, 21593, 28457, 30049, 31559, 37297, 41591, 49153, 330539, 390637, 410267, 540683, 570931, 4297007, 6280241, 7422103, 81643133]

約数ペア:

[(1, 81643133), (11, 7422103), (13, 6280241), (19, 4297007), (143, 570931), (151, 540683), (199, 410267), (209, 390637), (247, 330539), (1661, 49153), (1963, 41591), (2189, 37297), (2587, 31559), (2717, 30049), (2869, 28457), (3781, 21593)]