19805155

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 24482304

約数和(自身を除く): 4677149

約数列:

[1, 5, 43, 215, 251, 367, 1255, 1835, 10793, 15781, 53965, 78905, 92117, 460585, 3961031, 19805155]

約数ペア:

[(1, 19805155), (5, 3961031), (43, 460585), (215, 92117), (251, 78905), (367, 53965), (1255, 15781), (1835, 10793)]