19628906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{4001}}^1$

素因数の和:4237

約数の個数: 16

約数和(自身を含む): 32272128

約数和(自身を除く): 12643222

約数列:

[1, 2, 11, 22, 223, 446, 2453, 4001, 4906, 8002, 44011, 88022, 892223, 1784446, 9814453, 19628906]

約数ペア:

[(1, 19628906), (2, 9814453), (11, 1784446), (22, 892223), (223, 88022), (446, 44011), (2453, 8002), (4001, 4906)]