21123839

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1907}}^1$

素因数の和:1990

約数の個数: 16

約数和(自身を含む): 24727680

約数和(自身を除く): 3603841

約数列:

[1, 11, 19, 53, 209, 583, 1007, 1907, 11077, 20977, 36233, 101071, 398563, 1111781, 1920349, 21123839]

約数ペア:

[(1, 21123839), (11, 1920349), (19, 1111781), (53, 398563), (209, 101071), (583, 36233), (1007, 20977), (1907, 11077)]