21104272

素因数分解:

$2^4\times 7^1\times {\mathrm{188431}}^1$

素因数の和:188446

約数の個数: 20

約数和(自身を含む): 46731136

約数和(自身を除く): 25626864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188431, 376862, 753724, 1319017, 1507448, 2638034, 3014896, 5276068, 10552136, 21104272]

約数ペア:

[(1, 21104272), (2, 10552136), (4, 5276068), (7, 3014896), (8, 2638034), (14, 1507448), (16, 1319017), (28, 753724), (56, 376862), (112, 188431)]