18128516

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1583}}^1$

素因数の和:2003

約数の個数: 24

約数和(自身を含む): 36368640

約数和(自身を除く): 18240124

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1583, 1636, 2863, 3166, 5726, 6332, 11081, 11452, 22162, 44324, 647447, 1294894, 2589788, 4532129, 9064258, 18128516]

約数ペア:

[(1, 18128516), (2, 9064258), (4, 4532129), (7, 2589788), (14, 1294894), (28, 647447), (409, 44324), (818, 22162), (1583, 11452), (1636, 11081), (2863, 6332), (3166, 5726)]