18787023

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:304

約数の個数: 36

約数和(自身を含む): 29884608

約数和(自身を除く): 11097585

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 233, 279, 289, 527, 699, 867, 1581, 2097, 2601, 3961, 4743, 7223, 8959, 11883, 21669, 26877, 35649, 65007, 67337, 80631, 122791, 202011, 368373, 606033, 1105119, 2087447, 6262341, 18787023]

約数ペア:

[(1, 18787023), (3, 6262341), (9, 2087447), (17, 1105119), (31, 606033), (51, 368373), (93, 202011), (153, 122791), (233, 80631), (279, 67337), (289, 65007), (527, 35649), (699, 26877), (867, 21669), (1581, 11883), (2097, 8959), (2601, 7223), (3961, 4743)]