19507804

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{157321}}^1$

素因数の和:157356

約数の個数: 12

約数和(自身を含む): 35240128

約数和(自身を除く): 15732324

約数列:

[1, 2, 4, 31, 62, 124, 157321, 314642, 629284, 4876951, 9753902, 19507804]

約数ペア:

[(1, 19507804), (2, 9753902), (4, 4876951), (31, 629284), (62, 314642), (124, 157321)]