21990054

素因数分解:

$2^1\times 3^1\times {\mathrm{829}}^1\times {\mathrm{4421}}^1$

素因数の和:5255

約数の個数: 16

約数和(自身を含む): 44043120

約数和(自身を除く): 22053066

約数列:

[1, 2, 3, 6, 829, 1658, 2487, 4421, 4974, 8842, 13263, 26526, 3665009, 7330018, 10995027, 21990054]

約数ペア:

[(1, 21990054), (2, 10995027), (3, 7330018), (6, 3665009), (829, 26526), (1658, 13263), (2487, 8842), (4421, 4974)]