16905890

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{3851}}^1$

素因数の和:4297

約数の個数: 16

約数和(自身を含む): 30507840

約数和(自身を除く): 13601950

約数列:

[1, 2, 5, 10, 439, 878, 2195, 3851, 4390, 7702, 19255, 38510, 1690589, 3381178, 8452945, 16905890]

約数ペア:

[(1, 16905890), (2, 8452945), (5, 3381178), (10, 1690589), (439, 38510), (878, 19255), (2195, 7702), (3851, 4390)]