19918638

素因数分解:

$2^1\times 3^2\times {\mathrm{769}}^1\times {\mathrm{1439}}^1$

素因数の和:2216

約数の個数: 24

約数和(自身を含む): 43243200

約数和(自身を除く): 23324562

約数列:

[1, 2, 3, 6, 9, 18, 769, 1439, 1538, 2307, 2878, 4317, 4614, 6921, 8634, 12951, 13842, 25902, 1106591, 2213182, 3319773, 6639546, 9959319, 19918638]

約数ペア:

[(1, 19918638), (2, 9959319), (3, 6639546), (6, 3319773), (9, 2213182), (18, 1106591), (769, 25902), (1439, 13842), (1538, 12951), (2307, 8634), (2878, 6921), (4317, 4614)]