18813885

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{2371}}^1$

素因数の和:2425

約数の個数: 24

約数和(自身を含む): 31481184

約数和(自身を除く): 12667299

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 529, 1587, 2371, 2645, 7113, 7935, 11855, 35565, 54533, 163599, 272665, 817995, 1254259, 3762777, 6271295, 18813885]

約数ペア:

[(1, 18813885), (3, 6271295), (5, 3762777), (15, 1254259), (23, 817995), (69, 272665), (115, 163599), (345, 54533), (529, 35565), (1587, 11855), (2371, 7935), (2645, 7113)]