19900787

素因数分解:

${\mathrm{43}}^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:362

約数の個数: 12

約数和(自身を含む): 20898720

約数和(自身を除く): 997933

約数列:

[1, 43, 47, 229, 1849, 2021, 9847, 10763, 86903, 423421, 462809, 19900787]

約数ペア:

[(1, 19900787), (43, 462809), (47, 423421), (229, 86903), (1849, 10763), (2021, 9847)]