20976508

素因数分解:

$2^2\times 7^3\times {\mathrm{15289}}^1$

素因数の和:15314

約数の個数: 24

約数和(自身を含む): 42812000

約数和(自身を除く): 21835492

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15289, 30578, 61156, 107023, 214046, 428092, 749161, 1498322, 2996644, 5244127, 10488254, 20976508]

約数ペア:

[(1, 20976508), (2, 10488254), (4, 5244127), (7, 2996644), (14, 1498322), (28, 749161), (49, 428092), (98, 214046), (196, 107023), (343, 61156), (686, 30578), (1372, 15289)]