1889721

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 2951520

約数和(自身を除く): 1061799

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 257, 387, 771, 817, 2313, 2451, 4883, 7353, 11051, 14649, 33153, 43947, 99459, 209969, 629907, 1889721]

約数ペア:

[(1, 1889721), (3, 629907), (9, 209969), (19, 99459), (43, 43947), (57, 33153), (129, 14649), (171, 11051), (257, 7353), (387, 4883), (771, 2451), (817, 2313)]