199918971

素因数分解:

$3^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{4159}}^1$

素因数の和:4288

約数の個数: 36

約数和(自身を含む): 339081600

約数和(自身を除く): 139162629

約数列:

[1, 3, 7, 9, 21, 49, 63, 109, 147, 327, 441, 763, 981, 2289, 4159, 5341, 6867, 12477, 16023, 29113, 37431, 48069, 87339, 203791, 262017, 453331, 611373, 1359993, 1834119, 3173317, 4079979, 9519951, 22213219, 28559853, 66639657, 199918971]

約数ペア:

[(1, 199918971), (3, 66639657), (7, 28559853), (9, 22213219), (21, 9519951), (49, 4079979), (63, 3173317), (109, 1834119), (147, 1359993), (327, 611373), (441, 453331), (763, 262017), (981, 203791), (2289, 87339), (4159, 48069), (5341, 37431), (6867, 29113), (12477, 16023)]