18443890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{16921}}^1$

素因数の和:17037

約数の個数: 16

約数和(自身を含む): 33505560

約数和(自身を除く): 15061670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 16921, 33842, 84605, 169210, 1844389, 3688778, 9221945, 18443890]

約数ペア:

[(1, 18443890), (2, 9221945), (5, 3688778), (10, 1844389), (109, 169210), (218, 84605), (545, 33842), (1090, 16921)]