19690870

素因数分解:

$2^1\times 5^1\times {\mathrm{827}}^1\times {\mathrm{2381}}^1$

素因数の和:3215

約数の個数: 16

約数和(自身を含む): 35501328

約数和(自身を除く): 15810458

約数列:

[1, 2, 5, 10, 827, 1654, 2381, 4135, 4762, 8270, 11905, 23810, 1969087, 3938174, 9845435, 19690870]

約数ペア:

[(1, 19690870), (2, 9845435), (5, 3938174), (10, 1969087), (827, 23810), (1654, 11905), (2381, 8270), (4135, 4762)]