20772472

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2789}}^1$

素因数の和:2828

約数の個数: 48

約数和(自身を含む): 47709000

約数和(自身を除く): 26936528

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 2789, 3724, 5578, 7448, 11156, 19523, 22312, 39046, 52991, 78092, 105982, 136661, 156184, 211964, 273322, 370937, 423928, 546644, 741874, 1093288, 1483748, 2596559, 2967496, 5193118, 10386236, 20772472]

約数ペア:

[(1, 20772472), (2, 10386236), (4, 5193118), (7, 2967496), (8, 2596559), (14, 1483748), (19, 1093288), (28, 741874), (38, 546644), (49, 423928), (56, 370937), (76, 273322), (98, 211964), (133, 156184), (152, 136661), (196, 105982), (266, 78092), (392, 52991), (532, 39046), (931, 22312), (1064, 19523), (1862, 11156), (2789, 7448), (3724, 5578)]