21299416

素因数分解:

$2^3\times {\mathrm{563}}^1\times {\mathrm{4729}}^1$

素因数の和:5298

約数の個数: 16

約数和(自身を含む): 40015800

約数和(自身を除く): 18716384

約数列:

[1, 2, 4, 8, 563, 1126, 2252, 4504, 4729, 9458, 18916, 37832, 2662427, 5324854, 10649708, 21299416]

約数ペア:

[(1, 21299416), (2, 10649708), (4, 5324854), (8, 2662427), (563, 37832), (1126, 18916), (2252, 9458), (4504, 4729)]