18687339

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 31898880

約数和(自身を除く): 13211541

約数列:

[1, 3, 9, 11, 23, 29, 33, 69, 87, 99, 207, 253, 261, 283, 319, 667, 759, 849, 957, 2001, 2277, 2547, 2871, 3113, 6003, 6509, 7337, 8207, 9339, 19527, 22011, 24621, 28017, 58581, 66033, 71599, 73863, 90277, 188761, 214797, 270831, 566283, 644391, 812493, 1698849, 2076371, 6229113, 18687339]

約数ペア:

[(1, 18687339), (3, 6229113), (9, 2076371), (11, 1698849), (23, 812493), (29, 644391), (33, 566283), (69, 270831), (87, 214797), (99, 188761), (207, 90277), (253, 73863), (261, 71599), (283, 66033), (319, 58581), (667, 28017), (759, 24621), (849, 22011), (957, 19527), (2001, 9339), (2277, 8207), (2547, 7337), (2871, 6509), (3113, 6003)]