21812660

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6691}}^1$

素因数の和:6863

約数の個数: 24

約数和(自身を含む): 46094496

約数和(自身を除く): 24281836

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 6691, 13382, 26764, 33455, 66910, 133820, 1090633, 2181266, 4362532, 5453165, 10906330, 21812660]

約数ペア:

[(1, 21812660), (2, 10906330), (4, 5453165), (5, 4362532), (10, 2181266), (20, 1090633), (163, 133820), (326, 66910), (652, 33455), (815, 26764), (1630, 13382), (3260, 6691)]