20338263

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 34667520

約数和(自身を除く): 14329257

約数列:

[1, 3, 9, 11, 27, 31, 33, 47, 93, 99, 141, 279, 297, 341, 423, 517, 837, 1023, 1269, 1457, 1551, 2209, 3069, 4371, 4653, 6627, 9207, 13113, 13959, 16027, 19881, 24299, 39339, 48081, 59643, 68479, 72897, 144243, 205437, 218691, 432729, 616311, 656073, 753269, 1848933, 2259807, 6779421, 20338263]

約数ペア:

[(1, 20338263), (3, 6779421), (9, 2259807), (11, 1848933), (27, 753269), (31, 656073), (33, 616311), (47, 432729), (93, 218691), (99, 205437), (141, 144243), (279, 72897), (297, 68479), (341, 59643), (423, 48081), (517, 39339), (837, 24299), (1023, 19881), (1269, 16027), (1457, 13959), (1551, 13113), (2209, 9207), (3069, 6627), (4371, 4653)]