18904263

素因数分解:

$3^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{1459}}^1$

素因数の和:2086

約数の個数: 16

約数和(自身を含む): 28872960

約数和(自身を除く): 9968697

約数列:

[1, 3, 7, 21, 617, 1459, 1851, 4319, 4377, 10213, 12957, 30639, 900203, 2700609, 6301421, 18904263]

約数ペア:

[(1, 18904263), (3, 6301421), (7, 2700609), (21, 900203), (617, 30639), (1459, 12957), (1851, 10213), (4319, 4377)]