19902194

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1559}}^1$

素因数の和:2065

約数の個数: 16

約数和(自身を含む): 32235840

約数和(自身を除く): 12333646

約数列:

[1, 2, 13, 26, 491, 982, 1559, 3118, 6383, 12766, 20267, 40534, 765469, 1530938, 9951097, 19902194]

約数ペア:

[(1, 19902194), (2, 9951097), (13, 1530938), (26, 765469), (491, 40534), (982, 20267), (1559, 12766), (3118, 6383)]