21340319

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21319}}^1$

素因数の和:21350

約数の個数: 16

約数和(自身を含む): 28654080

約数和(自身を除く): 7313761

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21319, 149233, 234509, 277147, 1641563, 1940029, 3048617, 21340319]

約数ペア:

[(1, 21340319), (7, 3048617), (11, 1940029), (13, 1641563), (77, 277147), (91, 234509), (143, 149233), (1001, 21319)]