18537321

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 27408640

約数和(自身を除く): 8871319

約数列:

[1, 3, 11, 33, 121, 223, 229, 363, 669, 687, 2453, 2519, 7359, 7557, 26983, 27709, 51067, 80949, 83127, 153201, 561737, 1685211, 6179107, 18537321]

約数ペア:

[(1, 18537321), (3, 6179107), (11, 1685211), (33, 561737), (121, 153201), (223, 83127), (229, 80949), (363, 51067), (669, 27709), (687, 26983), (2453, 7557), (2519, 7359)]