18867884

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{15671}}^1$

素因数の和:15725

約数の個数: 24

約数和(自身を含む): 38615808

約数和(自身を除く): 19747924

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 15671, 31342, 62684, 109697, 219394, 438788, 673853, 1347706, 2695412, 4716971, 9433942, 18867884]

約数ペア:

[(1, 18867884), (2, 9433942), (4, 4716971), (7, 2695412), (14, 1347706), (28, 673853), (43, 438788), (86, 219394), (172, 109697), (301, 62684), (602, 31342), (1204, 15671)]