19121421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{5737}}^1$

素因数の和:5852

約数の個数: 16

約数和(自身を含む): 28093248

約数和(自身を除く): 8971827

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 5737, 17211, 63107, 189321, 579437, 1738311, 6373807, 19121421]

約数ペア:

[(1, 19121421), (3, 6373807), (11, 1738311), (33, 579437), (101, 189321), (303, 63107), (1111, 17211), (3333, 5737)]