18404541

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 27301560

約数和(自身を除く): 8897019

約数列:

[1, 3, 9, 73, 109, 219, 257, 327, 657, 771, 981, 2313, 7957, 18761, 23871, 28013, 56283, 71613, 84039, 168849, 252117, 2044949, 6134847, 18404541]

約数ペア:

[(1, 18404541), (3, 6134847), (9, 2044949), (73, 252117), (109, 168849), (219, 84039), (257, 71613), (327, 56283), (657, 28013), (771, 23871), (981, 18761), (2313, 7957)]