198459009

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4481}}^1$

素因数の和:4550

約数の個数: 48

約数和(自身を含む): 354257280

約数和(自身を除く): 155798271

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 259, 333, 399, 703, 777, 1197, 2109, 2331, 4481, 4921, 6327, 13443, 14763, 31367, 40329, 44289, 85139, 94101, 165797, 255417, 282303, 497391, 595973, 766251, 1160579, 1492173, 1787919, 3150143, 3481737, 5363757, 9450429, 10445211, 22051001, 28351287, 66153003, 198459009]

約数ペア:

[(1, 198459009), (3, 66153003), (7, 28351287), (9, 22051001), (19, 10445211), (21, 9450429), (37, 5363757), (57, 3481737), (63, 3150143), (111, 1787919), (133, 1492173), (171, 1160579), (259, 766251), (333, 595973), (399, 497391), (703, 282303), (777, 255417), (1197, 165797), (2109, 94101), (2331, 85139), (4481, 44289), (4921, 40329), (6327, 31367), (13443, 14763)]