16973271

素因数分解:

$3^2\times 7^1\times {\mathrm{419}}^1\times {\mathrm{643}}^1$

素因数の和:1075

約数の個数: 24

約数和(自身を含む): 28129920

約数和(自身を除く): 11156649

約数列:

[1, 3, 7, 9, 21, 63, 419, 643, 1257, 1929, 2933, 3771, 4501, 5787, 8799, 13503, 26397, 40509, 269417, 808251, 1885919, 2424753, 5657757, 16973271]

約数ペア:

[(1, 16973271), (3, 5657757), (7, 2424753), (9, 1885919), (21, 808251), (63, 269417), (419, 40509), (643, 26397), (1257, 13503), (1929, 8799), (2933, 5787), (3771, 4501)]