21051772

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5653}}^1$

素因数の和:5690

約数の個数: 36

約数和(自身を含む): 45118920

約数和(自身を除く): 24067148

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5653, 11306, 22612, 39571, 79142, 107407, 158284, 214814, 276997, 429628, 553994, 751849, 1107988, 1503698, 3007396, 5262943, 10525886, 21051772]

約数ペア:

[(1, 21051772), (2, 10525886), (4, 5262943), (7, 3007396), (14, 1503698), (19, 1107988), (28, 751849), (38, 553994), (49, 429628), (76, 276997), (98, 214814), (133, 158284), (196, 107407), (266, 79142), (532, 39571), (931, 22612), (1862, 11306), (3724, 5653)]