28081011

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{7001}}^1$

素因数の和:7202

約数の個数: 16

約数和(自身を含む): 43020288

約数和(自身を除く): 14939277

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 7001, 21003, 49007, 147021, 1337191, 4011573, 9360337, 28081011]

約数ペア:

[(1, 28081011), (3, 9360337), (7, 4011573), (21, 1337191), (191, 147021), (573, 49007), (1337, 21003), (4011, 7001)]