19738989

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7589}}^1$

素因数の和:7629

約数の個数: 18

約数和(自身を含む): 30291690

約数和(自身を除く): 10552701

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7589, 22767, 68301, 129013, 387039, 1161117, 2193221, 6579663, 19738989]

約数ペア:

[(1, 19738989), (3, 6579663), (9, 2193221), (17, 1161117), (51, 387039), (153, 129013), (289, 68301), (867, 22767), (2601, 7589)]