19564131

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{997}}^1$

素因数の和:1242

約数の個数: 16

約数和(自身を含む): 27081728

約数和(自身を除く): 7517597

約数列:

[1, 3, 31, 93, 211, 633, 997, 2991, 6541, 19623, 30907, 92721, 210367, 631101, 6521377, 19564131]

約数ペア:

[(1, 19564131), (3, 6521377), (31, 631101), (93, 210367), (211, 92721), (633, 30907), (997, 19623), (2991, 6541)]