18120291

素因数分解:

$3^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1051}}^1$

素因数の和:1882

約数の個数: 16

約数和(自身を含む): 27671808

約数和(自身を除く): 9551517

約数列:

[1, 3, 7, 21, 821, 1051, 2463, 3153, 5747, 7357, 17241, 22071, 862871, 2588613, 6040097, 18120291]

約数ペア:

[(1, 18120291), (3, 6040097), (7, 2588613), (21, 862871), (821, 22071), (1051, 17241), (2463, 7357), (3153, 5747)]